ignition system 点火系统
ignition switch 点火开关
spark ignition 火花点火
ignition timing 点火时间
A: Did you turn the ignition key?
A：你转动点火钥匙了吗？
B: Yes, but the engine still won't start.
B：是的，但引擎还是启动不了。
1) 点火或点燃的行为
2) 车辆的点火装置
3) 引起某事发生的诱因
1. 点火；点燃
2. 点火装置
noun
1. The action of setting something on fire or causing something to burn.
2. The part of an engine that produces the spark to start combustion.
Synonym: combustion, trigger