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top sub meaning in Chinese

上部接头

Examples

  1. The drive chuck and top sub are threaded into the cylinder with right - hand threads . the drill must be alway soperated with right - hand rotation
    因为冲击器的接头和接头都是右旋螺纹，所以钻进工作过程中，应始终保持冲击器右回旋。

Related Words

  1. sub committee on education and training
  2. topping unit
  3. top draining
  4. permanent top
  5. recombed top
  6. top slat
  7. right top
  8. top packer
  9. top loading
  10. top boot
  11. top structure
  12. top student
  13. top subsidence
  14. top support
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