V2EX derailleur

Derailleur

释义 Definition

(自行车)变速器;拨链器。用于引导链条在不同飞轮/牙盘之间切换,从而改变齿比与骑行阻力。(也可泛指某些机械系统中的“导向换挡装置”。)

发音 Pronunciation

/drelr/

例句 Examples

My rear derailleur needs adjusting.
我的后变速器需要调一下。

After the crash, the derailleur was bent, so the chain kept skipping gears on steep climbs.
摔车后变速器被撞弯了,所以在陡坡爬升时链条总是跳档。

词源 Etymology

derailleur 源自法语 dérailleur,与 *dé-*(表示“离开、脱离”)和 rail(“轨道”)相关,原意有“使脱轨/离轨的人或装置”之意。后来在自行车领域专指“让链条从一个齿轮‘移到’另一个齿轮的装置”,中文常译为“变速器/拨链器”。

相关词 Related Words

文学作品 Literary Works

在经典文学作品中,derailleur 作为高度具体的自行车部件词汇,出现频率相对较低;但在以骑行为主题的英文非虚构写作与回忆录中较常见,例如:

  • Tim Krabbé《The Rider》(《骑手》)
  • Paul Fournel《Need for the Bike》(《需要一辆自行车》)
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