单项选择题
The shells are secured by means of bearing caps and studs, the necessary clearance being provided by means of （） of different thickness.
A.shims
B.packing
C.glands
D.washers
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相关考题
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单项选择题
The sequence of parts in a generally used fuel oil supply system for a main engine is （） (1)tanks in the double bottom (2)centrifuges (3)service tank (4)settling tank (5)viscosity regulator
A.(1)-(2)-(4)-(3)-(5)
B.(1)-(4)-(2)-(3)-(5)
C.(1)-(3)-(2)-(4)-(5)
D.(1)-(5)-(4)-(2)-(3) -
单项选择题
The sequence of fuel injection into cylinders is determined by （）.
A.the steering
B.the driven gear
C.the turning gear
D.the timing gear -
单项选择题
The selection of an oil from the （） depends to a great extent on the operating conditions, the design of the engine and the type of fuel to be burned.
A.commercially available
B.commercially
C.commercial available
D.commerce available
