Ramsbottom safety valve

名词 n.
中文释义

英文释义

名词 n.
  1. A kind of tamperproof safety valve for use on locomotives, consisting of two plug-type valves connected by a spring-laden pivoting arm.
    — The boiler had a large dome over the firebox, inside the cab, surmounted by Ramsbottom safety valves.

词形变化

Ramsbottom safety valves plural

词源

Named after English mechanical engineer John Ramsbottom.
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