Diesel engine blow-by is the leakage of combustion gases past the （）<br>A:oil rings only<br>B:compression and scraper rings<br>C:cylinder liner sealings<br>D:cylinder liner ring grooves

Diesel engine blow-by is the leakage of combustion gases past the （）
A:oil rings only
B:compression and scraper rings
C:cylinder liner sealings
D:cylinder liner ring grooves

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