Paint the tooth flank of the big bevel gear with a thin and equal red lead coat.

即在大锥齿轮的齿面上涂一层薄而均匀的红铅油，然后转动齿轮数圈。

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By using the principle of reliability design, the withdrwal core mechanism with bevel lead column in plastic injection mould is analyzed.

运用可靠性设计原理， 对塑料注射模常用的斜导柱式抽芯机构进行分析。

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