A.is scavenged
B.is atomized with fuel oil
C.be scavenged
D.be atomized with fuel oil
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A.well
B.good
C.excellent
D.respectively
A.lime
B.frost
C.scale
D.scar
A.scar
B.scale
C.spur
D.bilge
A.continuously
B.regularly
C.constantly
D.period
A.to change the lube oil
B.have the lube oil purified
C.have the lube oil burnt
D.to analyze the lube oil
最新試題
The minimum speed an engine must attain before ignition can occur depends upon （）.
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A thrust bearing is used with a propulsion diesel engine to （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Routine monitoring of a diesel engine should include （）.
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The highest pressure in a diesel engine cylinder normally occurs （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.