left hand screw

常见例句

双语例句

• The medical orthopaedics left-hand tap solves the tapping problem of the left-hand screw.
  本实用新型 解决了左旋螺丝钉的攻丝问题。
  ip.com
• The conventions of electricity generating, electricity receiving, left-hand screw and right-hand screw.
  引入了发电惯例、收电惯例、左螺惯例、右螺惯例等概念。
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