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S. bearing guided for ease of operation and long life.
轴承导向,操作方便、寿命长。
youdao
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Their influence to mine′s safety and operation is explained through some actual examples.
利用实例说明了层滑构造对矿井安全和生产的影响;
youdao
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Their influence to mine′s safety and operation is explained through some actual examples.
利用实例说明了层滑构造对矿井安全和生产的影响;
youdao