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- JIAHUI
- ??????
- 7-15 ?????
- معلومات
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2. ?????? ?????? ???????? ???????
??? ???? ?????? 35 ?????? ???? ????? ?????? ??????????
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???? ?????? ???????? ???????? ?????? ??? ????? ?????? ?????
3. ?????? ??????? ???????
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???? ???? 110 ?? ?? ?????? ????? ???????
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|---|---|---|---|---|
| ??? ??? ????? | ≥30 ????? | ≥15 ????? | ?? ????? ?? ???? | ? ????? ?? ???? |
| ???? ???? ????? | 60 ?? ~ 70 ?? | |||
| ????? ??????? ?????? | 1.0 ?? | 1.0 ?? | 0.8 ?? | 0.8 ?? |
| ??? ?????? | 110 ??? | |||
| ??? ??????? ?? ?????? | 2.0 ?? | 2.0 ?? | 1.8 ?? | 1.5 ?? |
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| ??? ????? | ??? ???? ?????? | |||
| ???? ????? | 12 | 10 | 8 | 6 |
| ??? ????? | 35dB | |||
| ????? ??????? | 1.8-2.2 ???/?2·? | |||
| ?????? ?????? | ???? ?????? ??? ???? ???????? ????? | |||
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1. ????? ?? ???? ???
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2. ????? ????? ?????
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4. ?????? ????????
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