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????????????????????????????????С??????????????°????????????????????
????1??ú???????????????????1450r/min????????200h??ú?????????????е??????????0.8?????й??????????????
????2?????????????1450r/min????????24h???й??е???????????150g??
????3?????????????1450r/min????????120h???й??е???????????250g??
????4?????????????????????????????GB/T10595??涨??????????????????20000h??

????С??????????????????????????????????????????汣??????Щ??λ?????????????????????????????????????ī??????????????????????????????????????????????á?????????и??????????????????????????й??????λ????????????

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