leg seam 中文意思是什麼
leg seam
解釋
褲腿縫-
The high seam drill 2000 is stainless steel construction and the cylinder rods of the 1st inner legs of the stinger and drill leg are stainless steel
此厚煤層鉆2000為不銹鋼結構,且刺和鉆支架的一級內支架所屬的活塞桿也是不銹鋼的。
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