polish rod

 
  • 光杆

polish rod的用法和样例:

例句

  1. The new assembly can make the joint of the polished rod pass through, therefore can meet the need of new oil production technology.
    这种密封盒可以使比光杆杆体直径大得多的光杆接头通过,能满足新的采油工艺需要。
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