Air in the fuel lines to the fuel injection nozzles of a diesel engine will cause the engi

When the order _____ is received from the bridge, the main air stop valve in the starting air line should be shut.

The fuel injector injects a fine spray of fuel into the hot air and combustion _____, producing much high pressure in the gases.

The burning of the fuel adds more heat to the air charge, causing it to expand and force t

Before liquid can flow into a pump, the air in the suction line must be _____ sufficiently

听力原文：（A) The girl is bending down to fuel her own car. （B) She is putting air in her t

The soot blowers are operating in the oil fuel boiler the air/fuel ratio must _____ throug