Johnson bar

名词 n.
中文释义

英文释义

名词 n.
  1. A corrugated metal bar used to reinforce concrete.
  2. A hand lever on various vehicles.
  3. A lever-dolly (similar to a crowbar) for moving heavy apparatus.

词形变化

Johnson bars plural

词源

The reinforcing bar was invented by A. L. Johnson of the St. Louis Expanded Metal Company.
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