A.hunting gear
B.cut-off level
C.servo-motor
D.swivel block
您可能感興趣的試卷
你可能感興趣的試題
A.control equipment
B.power unit
C.transmission mechanisms
D.fittings and pipeline
A.dog clutch
B.Pair of gears
C.worm gear
D.turning gear
A.cranes
B.mooring barrel
C.capstans
D.cable lifter
A.popular
B.common
C.in lead position
D.uncommon
A.spur geared
B.screw geared
C.worm geared
D.belt driven
最新試題
The treatment of the fuel oils involves storage, heating, filtering and（）
Which of the following items don’t belong to dock repair works?（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
The condensers located in various stages of a flash evaporator are cooled by（）
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）