英语词汇“sealed-beam”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	sealed-beam
释义	sealed-beam adjective Denoting a vehicle headlamp with a sealed unit consisting of the light source, reflector, and lens: a sealed-beam headlamp... Sealed beam headlights are much harder to replace compared to composite headlamps. However, some vehicles use sealed beam lighting which requires that you convert to bulb type lighting. This document establishes performance requirements, material requirements, design requirements, and design guidelines for sealed beam headlamps.
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