单项选择题
The power generated in the turbine must （） that required by the compressor.
A.be less than
B.be larger than
C.be as large as
D.not be so large as
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相关考题
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单项选择题
The position of the piston parts in relation to each other is secured by means of （） and a dowel pin in the crown.
A.bosses
B.through bolts
C.machine-turned recesses
D.long studs -
单项选择题
The position of the piston parts in relation to each other is secured by means of （） in the crown.
A.a mark
B.a bolt
C.a dowel pin
D.a measuring tool -
单项选择题
The position of the interface between oil and water within the centrifuge is achieved by the use of （）.
A.gravity disc
B.centrifugal bowl
C.a stack of discs
D.main sealing ring
