英语词汇pneumatic railway怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

　

单词	pneumatic railway
释义	Definition of pneumatic railway in English: pneumatic railway noun historical A type of railway in which a tube with a longitudinal slot in the top was laid between the rails, containing a piston which was joined to the train by a rigid arm passing through the slot, the train moving by the pressure of air on the piston within the tube. Origin Mid 19th century; earliest use found in The Times. Definition of pneumatic railway in US English: pneumatic railway noun historical A type of railway in which a tube with a longitudinal slot in the top was laid between the rails, containing a piston which was joined to the train by a rigid arm passing through the slot, the train moving by the pressure of air on the piston within the tube. Origin Mid 19th century; earliest use found in The Times.
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更新时间：2024/11/9 0:32:22