青云翻译

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Field observation on the engine suddenly load time, the black smoke emitted, engine speed stabilized smoke disappeared, a normal phenomenon.

The spot inspection loads suddenly when the engine, some black smoke emits, after engine speed stable black smoke vanishing, is the normal phenomenon.

On-the-spot observation in engine suddenly loaded, there is a black smoke, the engine speed stability after a normal phenomenon, smoke disappear.

Field observation on the engine suddenly load time, the black smoke emitted, engine speed stabilized smoke disappeared, a normal phenomenon.