hole drilling
短語(yǔ)詞組
- hole -drilling technique 小孔釋放法
- deep hole coring drilling 深孔巖心鉆探
- hole system drilling 孔系加工
- multi hole directional drilling 多開(kāi)眼定向鉆井
- long hole directional drilling 深孔定向鉆進(jìn) 返回 hole drilling
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