... 气门挺柱valve tappet 挺柱头tappet head 挺柱导套tappet guide ...
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tappet head of injection pump 喷油泵挺柱头
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The reason of the formation of gas porosities and cracks on the head face of valve tappet has been studied.
本文分析了气门挺杆端面气孔、裂纹形成原因。
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