A.a coil spring
B.a sealing ring
C.an oil distributor ring
D.main seal ring
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A.the crosshead
B.the journals of the crosshead
C.the crosshead shoes
D.the guides
A.the crank-web
B.the connecting rod
C.the main bearing
D.the cross-head
A.a bolt
B.a cap
C.a disc
D.a nut
A.piston gudgeon pin
B.piston skirt
C.cross-head
D.cross-head pin
A.lubricating oil
B.compressed air
C.cooling water
D.sealing ring
A.such far away from
B.such near by
C.as far away from
D.as near by
A.as far as
B.as soon as
C.as close as
D.as closer as
A.gas oil
B.diesel oil
C.chemical compound
D.Freon-12
A.top and bottom
B.to and fro
C.up and down
D.back and forth
A.piston
B.drum
C.plunger
D.barrel
最新试题
The main purpose of the piston oil scraper rings is to （）.
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Routine monitoring of a diesel engine should include （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
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In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Proper filtering and straining of fuel oil is important because the （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
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