T he parts must be carefully cleaned to ensure that it does not contain any cutting chip and other pollutants before assembling.
装配前各零件必须仔细清洗干净，不得有切屑磨粒或其它污物。
T he parts must be carefully cleaned to ensure that it does not contain any cutting chip and other pollutants before assembling.
装配前各零件必须仔细清洗干净，不得有切屑磨粒或其它污物。
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