The engine fires - spark plug ignites - once every revolution of the crankshaft.
The engine fires - spark plug ignites - once every revolution of the crankshaft.
火灾引擎-火花塞点燃--每曲轴革命.
The engine fires - spark plug ignites - once every revolution of the crankshaft.
火灾引擎-火花塞点燃--每曲轴革命.