head driller 中文意思是什麼
head driller
解釋
司鉆-
The practice amp; improvement of refit head dual channel reverse circulation main shaft about g - 3 engineering driller
3工程鉆機動力頭雙通道反循環主軸改裝實踐 -
The practice amp; amp; improvement of refit head dual channel reverse circulation main shaft about g - 3 engineering driller
3工程鉆機動力頭雙通道反循環主軸改裝實踐
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