A.between；to
B.either；or
C.from；to
D.neither；nor
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A.to help
B.to limit
C.to protect
D.to remove
A.a reduction
B.an increase
C.an outing
D.a downwards
A.cylinder cover
B.cylinder block
C.cylinder frame
D.bed-plate
A.tie rods
B.through bolts
C.lead wires
D.bearing caps
A.resisting oxidization
B.reducing friction
C.promoting moving speed
D.developing inertia
最新試題
White smoke exhausting from an operating diesel engine may indicate （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
The ability of the governor to prevent fluctuations in engine speed is termed （）.
The main purpose of the piston oil scraper rings is to （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
In a simple mechanical governor, the （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.