heading assembly 中文意思是什麼
heading assembly
解釋
掘進壞-
Longwall shearing and heading machines ; shanks of cutting tools and their assembly openings
長壁剪切機和鐓鍛機.切刀柄和其安裝開口 -
Abstract : applying the rule and methods of value engineering ( ve ) in the research on rock heading machine assembly has made good benefit
文摘:應用價值工程( ve )原理和方法,對巖巷掘進機械化作業線配套進行研究,使其取得良好的經濟效益。
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