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单词 middle rail
释义

Definition of middle rail in English:

middle rail

noun
  • 1The rail of a door level with the hands, to which the handle or lock is usually fixed.

  • 2A third, cogged, rail between the two running rails of a railway line, used in connection with a rack-and-pinion device on an engine for the ascent and descent of steep inclines; (later also) an additional rail between the two running rails which conveys the current in some electric railways.

Origin

Late 17th century; earliest use found in Joseph Moxon (1627–1691), printer and globe maker.

 
 

Definition of middle rail in US English:

middle rail

noun
  • 1The rail of a door level with the hands, to which the handle or lock is usually fixed.

  • 2A third, cogged, rail between the two running rails of a railway line, used in connection with a rack-and-pinion device on an engine for the ascent and descent of steep inclines; (later also) an additional rail between the two running rails which conveys the current in some electric railways.

Origin

Late 17th century; earliest use found in Joseph Moxon (1627–1691), printer and globe maker.

 
 
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更新时间:2024/12/23 16:06:37