Air motion is induced in a four-stroke/cycle diesel engine cylinder to improve air fuel mixing, and is known as（）<br>A:supercharging<br>B:scavenging<br>C:turbulence<br>D:swept volume charging

Air motion is induced in a four-stroke/cycle diesel engine cylinder to improve air fuel mixing, and is known as（）
A:supercharging
B:scavenging
C:turbulence
D:swept volume charging

出自：海船船员证

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