To avoid scavenge fires _____ the engine timing and equipment maintenance should be correc

The process of scavenging a two－stroke／cycle diesel engine serves to____________.A.improve

Cross scavenging requires the fitting of _____ to prevent air or exhaust gas escape when t

The scavenge port inspection should be carried out_____, to obtain the most reliable resul

Increased air _____ will raise scavenge efficiency and allow a greater mass of air to be c

______(48)A.To avoid being exploited mothers with

______( 47)A.To avoid being exploited mothers wit