screw prop

 
  • 千斤頂

screw prop的用法和樣例:

例句

  1. Each of the four legs contains a simple screw jack with a thrust bearing that is operated telescopically inside of two tubes.
    四條腿中每個都裝有一個簡單的螺旋千斤頂,千斤頂中又有一個在兩根管道中做伸縮操作的推力軸承。
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