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1.喷后滴油 (1)发动机温度低时,排气中常有一股股白烟;温度高时,则变成黑烟,而且排气管中有“乒乓”的放炮声。
1. After dropping oil (1) When the engine temperature is low, the exhaust often has a share of white smoke; when the temperature is high, it becomes black smoke, and exhaust pipe in the “ping-pong” blasting sound.