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()可导致液泵启动后无流量或流量变小。
A. 吸液过滤器堵塞
B. 管路系统堵塞
C. 卸载阀阀芯卡死
Clogged or partially obstructed exhaust ports on a diesel engine can cause()
A. over-speeding of the engine
B. failure of the engine to shut down
C. no effect of engine mounting bolts
D. high exhaust temperature