V2EX tachometer

Tachometer

定义 Definition

tachometer 是一种用于测量旋转速度的仪器,通常指汽车仪表盘上显示发动机每分钟转速(RPM)的转速表。

发音 Pronunciation

/tkmtr/(英式) /tkmtr/(美式)

例句 Examples

The tachometer showed that the engine was running at 3,000 RPM.
转速表显示发动机正以每分钟3000转的速度运行。

As the driver shifted into a higher gear, the needle on the tachometer dropped sharply before climbing again with the new burst of acceleration.
当司机换入更高挡位时,转速表上的指针急剧下降,随后又随着新一轮加速再次攀升。

词源 Etymology

该词源自希腊语 tachos(意为"速度")和 metron(意为"测量")。19世纪初期进入英语,最早用于描述各种测量速度的仪器。随着内燃机的普及,这个词逐渐专指测量发动机转速的仪表。

相关词汇 Related Words

文学与文化引用 Literary & Cultural References

  • 在杰克凯鲁亚克(Jack Kerouac)的《在路上》(On the Road)中,大量描写驾驶场景时涉及汽车仪表的意象,tachometer 作为速度与自由的象征出现。
  • 在汽车文化杂志和赛车文学中,tachometer 是极为常见的术语,象征着对机械性能的精确掌控。
  • 亨特S汤普森(Hunter S. Thompson)的《恐惧与厌恶在拉斯维加斯》(Fear and Loathing in Las Vegas)中,疯狂驾驶的场景里也出现过对转速表的描写。
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