V2EX retarder

Retarder

定义 Definition

retarder(名词)常指“减速/缓速装置”,用于让车辆或机械在不主要依赖摩擦刹车的情况下减速(如卡车的缓速器、发动机制动系统的一部分)。
在材料与化工语境中也可指“延缓作用的添加剂”,如缓凝剂(延缓水泥凝结)或在固定搭配中指阻燃剂flame retarder)。
(另有带冒犯性的俚语用法,这里不作为学习目标义项。)

发音 Pronunciation (IPA)

/rtrdr/ (US), /rtd/ (UK)

例句 Examples

The truck has a retarder for long downhill roads.
这辆卡车配有缓速器,适合长下坡路段。

By engaging the retarder, the driver maintained a steady speed on the mountain pass and reduced brake wear.
通过启用缓速装置,司机在山口保持了稳定车速,并减少了刹车片磨损。

词源 Etymology

来自动词 retard(延缓、减慢)+ 名词后缀 -er(表示“做……的东西/人”)。retard 源自拉丁语 retardare,意为“使变慢、拖延”。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

由于 retarder 更偏技术用语,它在小说等通俗文学中相对少见,更多见于工程与交通领域的权威资料,例如:

  • SAE(美国汽车工程师学会)技术论文中关于 engine retarder / hydraulic retarder(发动机缓速器/液力缓速器)的研究与应用报告
  • 车辆制动系统与商用车工程相关教材/手册(讨论长下坡控制、制动热衰退与缓速器配合)
  • 专利与标准文献中关于传动系/制动系统“retarder”结构与控制策略的描述
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