迟火花 retarding spark

延迟点火 delayed ignition ; late ignition

点火延迟 firing delay ; spark delay

延迟火球 Delayed Blast Fireball

着火迟延 ignition lag ; ignition delay

延迟发火 delayed ignition ; retarded spark

点火迟延 ignition lag ; [动力] ignition delay

延迟点火正时 retarded spark timing

点火迟后 timing lag

双点火延迟阀 dual ignition delay valve