-
S. bearing guided for ease of operation and long life.
轴承导向，操作方便、寿命长。
youdao
-
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
-
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