The term diesel engine scavenging means（）<br>A:delivering more air into the cylinder than it would normally receive during an ordinary charging process<br>B:forcing the products of combustion out of the cylinder with the fresh air charge<br>C:collecting the air charge at the cleaner<br>D:combustion and expansion of hot gas

The term diesel engine scavenging means（）
A:delivering more air into the cylinder than it would normally receive during an ordinary charging process
B:forcing the products of combustion out of the cylinder with the fresh air charge
C:collecting the air charge at the cleaner
D:combustion and expansion of hot gas

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