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单词 kingbolt
释义

WordReference Random House Unabridged Dictionary of American English © 2024
king•bolt  (kingbōlt′),USA pronunciation n. 
  1. Rail Transporta vertical bolt connecting the body of a vehicle with the fore axle, the body of a railroad car with a truck, etc.
  2. Building(in a roof truss) an iron or steel rod serving as a king post. Also called king rod. 
  • king + bolt1 1815–25

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