?????：?? ??? ?? ???????? ?? ??????? ???? ????? ??????? ??, ??? ???? ???????? ???????? ???? ????????????, ???? ?? ????? ?? ??????, NK ??????? ????? ????? ???? ?????? ??? ?????? ????? ??? ???????? ??? ????? ?????? ?? ??????? ????? ????? ???

????????, ??? ???????? ???? ?? ???????? ?????????? ???????? (CaMg(CO?)?) ??? ???? ??, ??? ???? ?????? ???? ??? ?? ??? ??? ??????, ????????, ???? ?????? ??? ??? ????? ?????? ??????? ???? ??????? ?? ???? ????? ????? ??? ???????, ??? ??? ???? ???? ???????? ?????? ?? ??? ??, ?? ??????? ????? ?? ????, ??????? ???? ????? ??????, ?????? ??? ????????? ??? ???? ????? ?????????? ?????? ??, ?? ???? ????? ?? ????? ???? ??????? ???? ???????? ????????? ?? ??? ???? ???? ????? ??? ???

????? ???? ???????? ???????? ??????? ??? ?????? ??????? ?? ??? ???????? ??? ???? ??? ??, ??? ??????? ???????? ??? ????? ?? ?????? ??? ??????? ???? ??? ??? ???? ?? ?????????? ?????? ???????? ??????? ?????? ???? ??? ???? ??? ?? ????? ????? ?? ????? ???????? ?? ???????? ???????? ??? ???? ???????? ???? ??????? ????? ?????? ???? ??, ???? ?????? ??? ????? ?? ??? ???????? ?????????? ??? ??????? ??? ??????? ?? ?? ??? ???? ????? ?? ????? ?????? ?? ??, ??? ???? ???????? ???????? ?? ???, ?????? ?? ??????? ?? ????????, NK ??????? ????? ????? ?? ?????? ??? ?????? ?????, ??? ???????? ?????? ???? ??????? ????? ????? ???

Dolomite Portable Crushing Plant in Malaysia

1. ???????? ?? ??????: ?????? ???? ???????? ???? ??? ?????? ?? ???

??????? ???? ????????? ???????? ?? ?????? ??? ????? ??, ?? ???? ??? '?? ?????, ??????? ??? ????? ???? ????? ???? ???? ?? ??? ?? ?????? ?? ???????? ??? ??????? (CaO ?????? 30-35%, MgO ?????? 20-25%), ??? ?????, ??? ???? ???? '?? 3 ??? 4 ??? ?? ?????? ??? ?????? ???? ??? ??, ??? ??? ?? ???-???? ???? ????? ????????, ??? ??? ?????? ??? ?????? ????? ???? ??? ?? ??? ????? ???? ????? ??????? ??? ???????? ????? ?? 12??? ??????? ????? (2021-2025) ?? ???? ????? ????? ???? ???? ?????? ???, ??? ??????? ???? ???????? ???????? ?? ??? ???? ???? ???? ???? ??? ??????? ???????? ?????? ??? ???? ????, ?? ??? ??? ???? ??? ???? ?????????? ?? ?????? ?? ??? ??, ??? ???? ??? ??????? ??????, ???? ?????? ????, ???? ??? ???????? ??? ?????? ?? ??? ???????? ???? ???????? ??? ???? ?? ?? ??? ?????? ???? ????? ???

??????, ?? ?? ???????? ???? ??? ??????? ??? ???? ????? ???? ???? ??? ???? ?????? ???????? ???? ????? ??, ????? ?????? ??? ????? ??? ?? ?? ?????? ????? ???????? ???? ?? ?????? ??? ?????, ??? ???? ??? ??? ???? ??????? ??, ??? ??? ?? ??? ?????? ???? ???????? ?????? ??? ?????? ??? ???? ????? ?? ???? ??? ?? ??? ?????, ???? ??? ??????? ?? ???? ???? ???? ???????????? ?? ???-????? ?????? ?????????? ?? ??????? ?????? ??? ???? ??? ???? ????? ???? ?????? ???????? ?? ?????? ??? ??, ?????? ?? ?? ??????, ??????????? ??? ????-???????? ???????? ?????? ????? ????? ?????? ???? ?????? ??? ??? ?????? ????? ?? ????, 麻豆社 ?? NK ??????? ?????? ????? ???? ???? ???????, ??? ???????? ????????????? ??? ???????? ??????? ??????? ?? ???? ????? ?? ???, ?? ???????? ?????? ?? ???? ???????? ???????? ???? ?? ?????? ????? ?? ????

Read Also:??????? ????? ??????? ???? ???? ?????? 5 ?????

2. ??????? ???? ???????? ?? ??? '?? ???????? ?? ??? ?????

??????? ???? ???????? ?? ????? ??? '?? ???????? ??? ??? ??? ?????? ???????? ?????? ?? ?? ??? ??????? ?????? ??? ?? ??? ??? ??????, ???????? ??? ???? ????? ??? ??????? ??????? ???? ???? ????? ??, ????? ???? ??????? ?? ??? ????? ???? ?????? ???? ??? ?? ?? ?? ??? ?? ??? ???? ???? ?? ???????? ??????? ???? ?????? ???????? ???? ?????? ?? ??? ?? ?????? ??? ???-??? ?????? ???? ????? ??? ??? ?? ??? ??? ?????? ??? ?????? ??????? ????? ???? ???????? ?????? ????? ?????? ???? ?? ???? ????, ??????? ?? ???? ??? ??? ??? ???? ??, ??? ???? ???? ????? ????? ??, ??? ??? ??????? ?? ????-????, ???-????, ??? ???????-???? ???????? '?? ??? ????? ??? ?? ??????? ??? ????, ???? ??? ???? ???????? ??????? ??? ??????? ??????? ?????? ??? ???? ??? ?? ??? ??, ??? ???? ??????? ?? ?? ???? (0-5 ????, 5-10 ????, 10-20 ??), ??? ???-???? ?????? (≤10%), ??? ??? ???? ???? ???? (≥30MPa) ????? ??? ??? ????, ??????? ?? ???? ???????? ?????? ?????? ?? ???? ????, ???????? ???? ??? ??? ??? ???? ?? ???????? ??? ????? ?? ??? ???

?? ?????? ????, ???????? ???? ???? ??? ??? ????? ?? ?????? ????????? ??? ??? ????????? ?????? ???? ????? ????? ???? ????, 麻豆社 ?? NK ??????? ????? ?????, ???? ??????? ???????, ?????? ?????, ??? ??????? ??????? ????????? ?? ???, ?????? ???????? ?? ???? ??? ?? ???? ?????? ???? ??, ?? ??????????? ??? ????????-????? ???????? ???? ?? ??? ??????????? ??? ?????? ???? ???

Dolomite Portable Crushing Plant in Malaysia

3. ???? ????? ??????: NK ??????? ????? ????? ??? ????????? ?????

?????? ?? ???????? ???????? ?? ???????????? ??? ?????? ???? ??????? ????? ?? ???? '?? ?????? ?? ??? ????????????? ?????? ???????? ???? ???? ????? ???? ????? NK ?????? ??????? ?????? ????? ??, ?? ????? ???, ????????, ????????? ??? ???? ?????? ??? ??? ????? ??????? ????? ???? ????? ??? ???? ???? ???? ???? ??? ?????? ??: ??????? ??? ?????? ?????, ??????? ??? ?????? ?????, ??? ?????????? ?????? ??????? ?????, ?? ?? ???? ?? ???????? ??? ??? ???? ?? ????????? ???????? ??????? ??? ?? ?????? ??? ??? ???????? ????????, ???? ????? ?????? ??? ?????? ?????? ?? ?????? ????? ???

3.1 ??????? ???? ?????? ????? (???????? ????????)

?????? ???????? ???? ?? ??? ????, ??? ?????? ????? ???? ???????? ???? ??? (????? ??? ??? ??? ??? ???? 600 ???? ??) ??? ???? ??????? (50-100 ????) ???? ???? ?? ????????? ?? ?? ?? ???? ???????? ?? ????? ??? ?? ????? ?? ???-???????? ???? ??? ?????? ??? ???? ??? ??, ??? ???? ??? ???? ???????? ?????, ??? ???????? ?????? (6:1 ???) ??? ?????? ???????? ????? ??? ??? ???? ???-???????? ???? ????? ??? ??? ??? ??, ?? ?? ???? ????? ?????? ??? ???? ???? ???? ??, ?? ???????? ?? ?????? ??? ?擦? ???? ????? ??? ????? ???

???? ?? ??????? ??????? ?? ???? ?????????? ??? ????????????? ?? ?????? ????? ??, ??? ??? ???? ???? ???? '?? ??? ?? 24 ???? ?? ???? ???? ???? ??? ???? ???? ?? ???? ??? ???? ???????, ???? ????? ??????? ????? ??? ???? ?? ?? ??? ???, ??????? ??????? ??? ???? ??? ????? ????? ?????????? ?? ??????? ???? '?? ??????? ???? ??, ??? ??? ???? ??? ?????? ???? ??? ?? ????? ???? ???

Portable Jaw Crusher Plant

3.2 ??????? ??? ?????? ????? (????? ????????)

???? ?????? ???? ???? ???????? ??????? ?? ?? ?? ???? ??? ???? ??? ????? ????? ???? ???? ?? ????????? ??? ??????? ??? ?????? ???? ?????????? ?????? ?? ????? ??? ??? ????-??????? ????? ??? ???????? ??, ??? ??? ????? ?? ?? ???? ?? ??????? ???? ????? ??? ???? ?? ???? ??? ??? ?????? ?????? ?????? ???? ??????? (?????? ?????? ?? ?????? ????) ?? ??? ???????? ???? ??? ??, ?? ?? ????? ???? ?? ??????? ?? ????? ?? ???? ??? ??? ???-???? ?????? ??? ????? ??????? ??, ?? ?????? ??????? ???? ??? ??????? ???? ????? ??? ???? ???? ???

?? ??? ??? ????? ?? ???? ??? ????? ??? ??, ??? ???? ???? ????? ???? ????? ??? ??? ??? ????? ??, ?? ???????? ???????? ????? ??? ?? ????? ??? ??????? ??? ??? ??????? ??? ??? ?????? ???? ?? ???????? ??????? ??????? ??? ?????? ?? ??? ??????? ??? ?? ?????? ???? ??? ??, ?? ???????? ??? ??????? ???????? ?? ?????? ??? ???-???? ?????? ??? ????? ??????? ????????? ???? ???? ?? ??? ??? ??? ??????? ??? ???? ??? ?????? ??????? ???? ????? ????? ?? ???? ??, ?? ???????? ??????? ??? ??????? ?? ??? ??????? ?? ??? ??? ??????? ???

3.3 ??????? ????? ????? (???????? ??? ???????)

??????? ???????? ?? ????, ???????? ???????? ??? ????????? ??? ??????? ?? ?????????? ?????? '?? ????? ????? ??? ?? ???? 3-??? ??????? ?????????? ?????? ??? ????? ???? ?? ????? ?????? ???? 18㎡ (1800×6000mm) ??, ?? ?? ????? ???? ??? ????? ??? ???? ????????? ???? ??????? ??? ??? ?? ???? ??: 0-5 ???? (??? ???????), 5-10 ???? (???? ???????), ??? 10-20 ???? (???? ???????)? ?????????? ?????? ???-?????????? ????????? ???? ??? ?????? ???? ??, ??? ???? ?????? ????????? ?????? ??? ??? ????????? ??????? (≥95%) ??, ?? ?? ????? ??????? ?? ?? ????? ????? ????? ??????? ???? ?????? '?? ????? ???

?????? ???? ???-????-?????????? ??????????? ?????? ??? ???? ??, ??? ?? ???? ?? ???? ???? ????? ?? ??? ?? ????? ???? ????? ??? ???? ??? ??? ??????? ??? ????? ??? ?? ????? ??? ?? ?? ??????? ??????? ??? ??? ????? ?????????? ??? ?????????? ??? ???? ????????? ??? ??????? ?? ???????? ???? ?????? ???????? ??, ??? ??? ??? ?? ??? ???? ??? ??????? ?? ??? ?????? ?? ??????? ??? ??????? ???

3.4 ????? ????? ??? ?????????

???? ?????? ??????? ???? ?? ??? ????? ??? ????? ????? ??, 麻豆社 ?? ????? ????? ??? ????????? ?? ??? ??????? ?? ?????? ????, ??? ???? ?????????? ???? (???? ???? ???? ???? ???? ????? ????? ??), ???? ????? (???? ??????? ?????? ???? ?? ?????? ??), ????? ?????? ???? (???????? ???? ????? ??), ??? ??? ???????? ?????? ???? (???? ???? ?? ?????? ???? ??? ?????? ??) ????? ??? ?? ??? ?????, ???? ??? ?????? ??????? ??????? ??????? ??? ??? ??? ??, ??? ???? ???? ????? (???? ?? ???? + ???? ????? ??? ????), ???? ????? (?????? ?? ??? ????????? ???), ??? ???? ???? ?? ?????? (???????? ???? ?? ???? ???) ????? ??, ?? ??????? ?? ??????? ??????? ?????? ?? ???? ????? ???? ???

4. ??????? ??????? ???? NK ??????? ?????? ????? ?? ?????? ?????

??????? ?? ??????? ???????? ???? ?????? NK ??????? ???????? ????? ???? ??? ???? ????????? ????? ??, ?? ????? ?????? ????? ?????-????? ??? ??????? ?????? ???? ???? ??, ??? ??? ???????????, ???? ??? ???????-????? ??? ??? ??? ???? ????? ????? ??? ???

4.1 ??? ???????? ??? ????????

???? ?????? ????? ???-??? ?????? ??????????, ????? ?? ????? ?????, ???? ???? ??? ????? ???? ?? ?????? ?? ???? ??? ???????? ??? ??? ???? ?????? ???? ??? ????? ???? ????? ???? ????? ???? ????? ??? ??? ???? ?????? ?? ??? ?? ??????? ???? ???????? ??? ??? ??? ?? ???? ????? ??, ?? ??? ?????? ?? ?????? ??? ????? ???? ???? ???? ???? ????? ??? ???? ?? ????? ??????? ??? ????? ??, ?? ???????? ?? ??? ?? ?? ??????? ???? ??? ????? ??? ??? ?????? ???? ?? ???? ??, ???-??? ?????? ???? ???? ?? ????? ?????? ?? ????? ????, ?????? ?? ????? ??? ??? ??? ??? ???? ??? ???? ?? ?? ?????? ?? ???? ??? ???????

4.2 ??? ???? ?? ??????? ??? ???? ????????????

???? ?????? ??????? ????? ????? ???-????????? ??????? ????? (?? ?????? ??? ??? ??????) ??? ???? ??? ?? ?? ?????? ????? ??????? ??? ?????? ???? ??????? ??? ??? ??? ???? ??????? ????? ?? ?? ??? ??? ?????? ?????? 200 ??/???? ??, ???? ????? ????? ?? ?????????? ?????? 150 ??/???? ??? ??? ???? ???? ?? ??????? ???? ?????? ?????? 120-150 ??/???? ??, ?? ?? ???? ?? ????? ???? ??????? ???? ????? 30% ???? ??? ??? ?????? ?? ????????? ?????? ??????? ????? ??? ????? ???? ?? ????? ??? ??? ?????? ??, ??? ???? ???? ?? ????? ≤2mm ??, ?? ????? ????? ??????? ??? ????? ?????? ??? ???? ???-???, ????? ??? ???? ???? ???? ??? ????-???? ???? ?????? ??? ???? ??, ?? ??????? ???? ??? ??? ???? ???? ???? ???? ??????? ?? ???? ?? ???? ??, ??? ???? ???? ??? ???? ????????? ????? ?????? ??, ??? ??? ??? ?????? ?? (???????? ??? ?????? ?? ≤2%) ??? ?? ?????? ???

4.3 ????? ?????? ??? ???? ????

???? ?????? ??????? ???? ??? ??????????? ???????? ??????? ????? ??? ???????? ??, ?? PLC ???????, ?? ?????? ??????, ??? ???? ??????? ????? ??? ????? ???? ??? ????????? ?????????? ???? ????? ????-???? ???? ??? ???, ??????? ??????, ???? ??????, ??? ??????? ??????? ???? ?? ???? ?????????? ??? ??????? ?? ???? ??? ?? ????? ???? ???? ?? ??? ????? ?? ????? ??? ??? ????? ????? ??, ?? ????? ?? ???? ??? ?? ??? ???? ???? ???? ??? ??? ????? ???? ?????? ??? ???? ??? ???? ?????? ???? ??, ??? ??? ??? ???? ??? ??????? ??? ??? ???, ????? ???? ?????? ??? ??????? ??? ?????? ???? ??, ??? ??? ????????? ??? ????? ??? ?????? ?? ????? ??? ????? ?? ??? ??? ?? ???? ???? ?? ???? ????? ??, ??????? ?? ??????? ??? ??????? ??? ??????? ????? ?? ???????-??????? ???? ??????? ???????? ?? ????? ??? ????? ??? ?? ???? ??????? ??, ??????? ?????? ?? ??? ??? ??????? ?? ??? ??????? ???? ??? ??????? ???

4.4 ??????? ??????? ?????? ??????

??????? ?? ??? ????????? ???? ?? ?????? ?? ????? ???? NK ???? ???? ???? ????? ?? ??? ???? ????????? ???? ???? ?? ??? ??? ??? ??? ???? ?? ????? ???? ????? ?? ??? ???? ?? ?????? ?? ???? ???? ??? ?? ??? ????? ?????? ????? ??? ????? ????? ?? ??? ??? ??? ???? ???? ????? ?? 90? ?? ????? ???? ?? ????? ?? ?? ???? ??? ????? ???? ?????? ?? ???? ?? ??????? ?? ???? ??? ?? ???? ?? ????? ??? ??? ??? ?? ???? ??? ???? ???? ??? ??? ??? ??? ?? ?? ??? ?? ??? ?? ???? ?? ?????? ≤10???????/?? ???? ??? ?? ?? ??????? ?? ???? ????? 50???????/?? ?? ??? ?? ??? ???? ?? ?? ???? ???? ???? ??? ?????? ??? ????? ?? ??? ???? ?? ???? ??????? ???? ???? ?? ??? ?? ??? ?? ???? ?? ??? ?? ≤75?? ?? (??) ?? ?? ???? ???? ?? ?? ??????? ?? ??? ?? ???? ???? ??? ???? ?? ???? ?? ???? ?? ????? ???? ?? ????? ?? ??? ??????? ???? ???? ???? ?? ??? ??? ???? ???? ??? ?? ?? ??? ???? ??? ???? ?? ?????? ???? ?? ????? ?? ??? ??????? ??? ???? ??? ?? ?? ???? ???? ?? ???? ????? ???? ???? ??? ???? ?? ????? ?? ??? ???? ???

4.5 ???? ???? ???? ??? ??? ????? ??????

???????? ???????? ???????? ??????? ???? ????????, NK ??????? ?????? ????? ???? ????????? ???? ????? ??? ??????, ?????? ???????? ???? ?? ?????? ?? ?????? ?????? ?? ??????? ?????? ?? ???????? ????? ?? ??????? 40% ??? ??, ?????? ????? ???? ?????? ???? ???????????, ????? ?? ???????? ?? ?????, ?? ????? ???? ??? ????, ?????? ???? ?? ???????? ???? ?????? ???? ?????? ?? ???? ??? 50% ??????? ??, ?????? ??????? ??? ????? ???? ??? '?? ????? ?? ???? ??, ??? ??? ???? ???? ??? ??? ???????? ????? ??? ????? ?? ????? ???? ??????? ????, ?????? ??????? ??????? ??? ??? ????? ??? ??????????? ?? ???? ??????? ?? ???? 30% ??? ??????? ?? ???? 25% ??????? ???

5. ???????? ??????? ????? ??? ???? ?????

???? ????????? ??? ????, NK ??????? ???? ?????? ??? ??? ???????? ????? ???? ?? ??? ???? ???? ?? ???? ??? ??? ???? ?? ??? ???? ??, ??? ??? ???? ??? ????????? ????? ??? ?????? ????? ???? ??? ???? ????? ??? ????? ????? ???????? ???? ?? ??:

  • ?????? ???????:?????? ?????? ?????? ???? ?? ???? ?? ???? ????? ????? ???? ??????? ??? ????? ?? ?????? ??, ??? ??? ???? ??? ??? ??????? ???? ???????? ???????? ?? ??? ?????? ????? ?????? ??? ??? ??????? ????? ?????? ?????????? ?? ????? ???? ????? ??? ???? ??? ?? ????? ????? ???
  • ????? ?? ???????:????? ???????? ???????? ?????? ?? ???? ??? ??????? ????? ????? ??? ???? ???? ??, ?? ??? ????? ?????? ??? ??? ?? ???? ?????? ?? ????? ????? ??? ???? ?????? ?????? ????? ??? ????? ????? ?? ???? ?????? ?? ??, ??? ??? ???? ??? ?????? ???? ???????? ?? ??? ?????? ?????? ???, ????? ?? ????? ????? ??? ????? ???? ???? ???? ??? ???? ??? ???? ???
  • Operational Costs:?? ???? ????? ???? ?? ???, ??????? ?? ???? ??? ?????? ?? ???? ??? ??????????? ????? ??? ??????? ??? ????????? ?????? ??? ?? ??? ?? ?????? ?? ????????? ??? ???? ??????? ???
  • ???????? ????????:??? ??? ?? ???? '?? ??? ??? ??? ?? ???? ???? ?????? ????????? ??, ?? ?? ????? ???????? ??????? ?????? ??? ???? ?????? ???? ???? ??? ???? ?? ????? ????? ??? ???????? ?????? ??? ????? ??? ??? ?? ???, ??????? ???????? ???? ??? ???? ??? ??? ???????? ????????? ?? ??????? ??????????? ??? ???? ???????? ??? ??? ??????? ????
  • ????????? ?? ???: ?????? ??? ???? ???? ??? ????? ??? ???-??? ????? ?????? ???? ????? ???? ?? ???? ??, ??? ??? ???? ???? ?? ????? ?? ????? ?? ?? ?????? ?????? ????? ??? ?? ?? ???? ??????? ?? ?? ?????? ???? ????? ???? ????? ?? ???? ?? ????? ?????? ???????? ??? ???? ??????? ??? ???? ???? ??, ??? ??? ???? ?????? ???? ??? ?????? ????? ??? ???? ???

?????? ?? ????????? ?????? ?? ????: "??????? ?? ????? ??????? ????? ????? ?? ???? ???????? ???????? ?????? ??? ?? ?????? ??? ??????? ??? ?? ?? ??????? ????????, ??????????? ??? ???????? ??????? ?? ???? ?????? ??? ??? ??? ????? ??? ???? ????? ???? ???? ??? ??????? ???? ???????? ?? ????? ???? ???? ???? ???? ????? ?????????? ?? ????? ????? ???? ??????? ?????? ??? ???? ??? ???? ??, ??? ???? ?? ??? ?? ???? ????????? ??? ??????????? ????? ??? ???? ???? ??? ???? ?? ???????? ??? ???? ?????? ??? ??? ????? ?? ?????????? ???? ??????? ??? ??? ?????? ?? ???? ???? ????

6. ??????? ?? ??? ????? ???? NK ??????? ?????? ????? ?? ???? ??? ?? ?????

??????? ?? ???? ?????, ??? ???? ????????, ???? ????, ??????? ??? ???? ???? ????? ??, ???? ?? ????? ?? ????? ??? ????????? ???? ????????? ?????? ?? ???? ??? ???? ?????? ?? ?????, ??????? ??????? ?????? ??? ???? ???????? ?????? ???? ???????? ??????? ?? ??? ???????????? ?? ?????? ???????? ????? ??? ????? ??? ????????? ??? 麻豆社 ?? NK ??????? ?????? ?????, ???? ???? ???????? ??? ???????? ????? ?? ???, ??????? ?? ??? ????? ???? ?????? ????????? ?????????? ?? ??????? ???

???????? ?? ??? ???, NK ??????? ???? ????? ??? ?????? ????? ?? ????, ????? ??? ??? ?????? ??? ???? ??? ?? ?? ???? ?? ???? ??, ??? ?????? ?? ??? ????? ?????????? ?? ?? ????? ?? ???? ??? ???? ?????? ?????? ???-??? ???? ???? ??? ?????? ????? ?????? ?????? ??????? ?? ????? ?????? ???? ??, ??? ??? ???-??? ?????????? ?? ???????? ??? ????? ??? ??????? ??? ??????? ??????? ??????? ?? ?????? ????? ???, 麻豆社 ???? ???? ?????? NK ?????? ??????? ???? ????? ??? ?????? ???, ?????? ?? ???????? ????? ??? ????? ?????, ???? ??? ??? ????? ??? ??????? ????? ??? ?????? ??, ??? ?? ??????? ??? ????? ???? ???????? ??? ????? ??? ??? ???? ???? ?? ??? ??? ???? ?? ???? ????? ???? ?????? ???? ?? ????