back reaming

基本解释

• [能源科学技术]倒划眼

英汉例句

双语例句

• Drill pipe is attached to the far side of the reamer so that it can be pulled back from the near side, once the pre-reaming operation is complete.
  扩孔器远侧与钻杆相连，当预扩孔作业完成后，可以将扩孔器从近侧拖回到远侧。
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词组短语

短语

• reaming and back reaming 划眼和倒划眼

• back reaming更多词组

专业释义

能源科学技术

• 倒划眼