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单词 raking prop
释义

Definition of raking prop in English:

raking prop

noun
Engineering
  • An inclined prop used to support the curbs in the excavation of a tunnel, mine-shaft, etc.

Origin

Mid 19th century; earliest use found in Frederick Simms (1803–1865), engineer and technical writer.

Definition of raking prop in US English:

raking prop

noun
Engineering
  • An inclined prop used to support the curbs in the excavation of a tunnel, mine-shaft, etc.

Origin

Mid 19th century; earliest use found in Frederick Simms (1803–1865), engineer and technical writer.

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更新时间:2024/9/21 16:30:53