A.salinity
B.alkalinity
C.acid
D.sanitary
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A.should be correctly carried out
B.should correctly be taken place
C.should carded with care
D.must to carry out with great care
A.occurred
B.occurring
C.not happening
D.occur
A.gases
B.paints
C.inhibitors
D.detergent
A.agent
B.shipchandler
C.surveyor
D.engineer
A.principle
B.principal
C.cause
D.case
最新試題
Diesel engine control can be obtained by the bridge ().
The ability of the governor to prevent fluctuations in engine speed is termed ().
The minimum speed an engine must attain before ignition can occur depends upon ().
Lube oil cannot be efficiently filtered if its ().
In using reduction gears to obtain efficient propeller speeds, ().
An automated diesel engine should normally shut down due to ()
The highest pressure in a diesel engine cylinder normally occurs ().
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in ().
A diesel engine piston ring face is in direct contact with the ().
The main purpose of the piston oil scraper rings is to ().