单词 | 气动 |
释义 | 〔caltrop〕A metal device with four projecting spikes so arranged that when three of the spikes are on the ground, the fourth points upward, used as a hazard to pneumatic tires or to the hooves of horses.铁蒺藜:一种金属装置,有四只突出的脚钉,三只立于地上,第四只指向上方,用作气动轮胎的闸或马蹄〔Beach〕American editor and inventor who built a demonstration pneumatic subway under Broadway in New York City in 1870.比奇,艾尔弗雷德·伊利:(1826-1896) 美国编辑和发明家,他于1870年在纽约市百老汇大街下建造了一个气动地下铁道实物 |
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