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单词 sheerlegs
释义

sheerlegs

/ˈʃɪəlɛɡz/
plural noun [treated as singular]
A hoisting apparatus made from poles joined at or near the top and separated at the bottom, used for masting ships, installing engines, and hauling heavy objects.Today we have steel piles and mechanical pile drivers - then they had only sheer legs and a suspended weight hauled up by hand....
  • The monkey bridge is constructed using two sheer legs and bridged with a hawser and handrails secured using pickets.
  • Guys attached to the sheer head allow moving the load horizontally by increasing or decreasing the angle of sheer legs off the vertical.
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更新时间:2024/12/23 18:44:13