the union working principle
... The Union Working Principle 本会工作原则 Described The Working Principle 对工作原理 As The Working Principle 为工作原则 ...
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The closing_in process of union nut assembly is analyzed and the structure, working principle and application on the lathe of the rolling closing_in tool are introduced in this paper.
分析了管螺母组件收口工艺，介绍了滚压收口工具的结构、工作原理及其在车床上的应用。
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