engine backfire
collocation发动机回火
An engine backfire is often caused by incorrect ignition timing.
发动机回火通常是由不正确的点火正时引起的。
（发动机的）回火；逆火
backfires — plural of backfire
（其他设备的）爆燃；爆炸；在气体或油发动机的排气或压缩冲程中发生的过早爆炸,导致活塞向错误方向运动。；内燃机排气通道中的爆炸。；其他设备中的爆炸。
A sudden explosion caused by fuel burning in the wrong part of an engine, such as the cylinder or exhaust system.
在气体或油发动机的排气或压缩冲程中发生的过早爆炸,导致活塞向错误方向运动。
A premature explosion in the cylinder of a gas or oil engine during the exhaust or the compression stroke, tending to drive the piston in the wrong direction.
内燃机排气通道中的爆炸。
An explosion in the exhaust passages of an internal combustion engine.
其他设备中的爆炸。
An explosion in other equipment.
The old car's engine let out a loud backfire that startled everyone nearby.
那辆旧车的发动机发出一声巨大的回火，吓了附近所有人一跳。
用法提示：此句中 backfire 作为可数名词，指内燃机排气中未燃烧燃料爆炸发出的巨响（回火）。
His attempt to spread rumors turned out to be a backfire as he lost his own reputation.
他散布谣言的努力结果适得其反，反而损害了自己的名声。
用法提示：此句中 backfire 作为可数名词，指适得其反的计划或行动，即带来反效果。
To control the forest fire, the firefighters ignited a backfire along the ridge.
为了控制森林火灾，消防员沿着山脊点燃了一道迎火（回火）。
用法提示：此句中 backfire 作为可数名词，指为减缓蔓延的野火而有意点燃的火（回火）。
比 backfire 更宽泛，可指任何爆炸；在引擎语境中可替换，但不强调回火这一特定原因。
更口语，侧重声响本身；可说 the engine gave a bang 指 backfire，但 bang 不表示引擎故障或爆炸原因。
发动机回火
An engine backfire is often caused by incorrect ignition timing.
发动机回火通常是由不正确的点火正时引起的。
排气管回火
An exhaust backfire can damage the muffler.
排气管回火会损坏消声器。
响亮的回火声
The truck gave a loud backfire as it accelerated.
卡车加速时发出一声响亮的回火声。
突然的回火
The sudden backfire surprised everyone in the garage.
突然的回火让车库里的人都吓了一跳。
回火问题
The mechanic fixed the backfire problem by adjusting the carburetor.
机械师通过调整化油器解决了回火问题。
back-（回/向后）+ fire（火）；相关词：backup, background, firework, fireplace
backfire 是内燃机工作过程中出现的异常爆炸现象。
爆炸发生的位置在发动机的气缸或排气道内。
backfire 常表现为排气管中的额外爆炸。
这种提前爆炸会使活塞朝错误方向运动。
backfire 与气缸内燃料的不正常燃烧相关。
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Dictionary facts from ECDICT, WIKTIONARY, WORDNET.