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单项选择题
A.steel guides
B.steel shells
C.steel bearing caps
D.pig iron
单项选择题
A.flange
B.flash
C.plate
D.sheet
单项选择题
A.main bearing shells
B.main bearing
C.steel
D.bearing metal
单项选择题
A.inside the bearing
B.outside the bearing
C.covering the crankshaft
D.none of the above
单项选择题
A.seized
B.clogged
C.melted
D.inserted
单项选择题
A.sufficient quantity； measured
B.measured quantity；sufficient
C.excessive quantity；sufficient
D.the less quantity the better；the more the better
单项选择题
A.atmosphere
B.the fresh water
C.compressed air
D.chemical compounds
单项选择题
A.a filter
B.a strainer
C.a magnetic filter
D.a fine strainer
单项选择题
A.tank
B.sump
C.vessel
D.bottle
单项选择题
A.a coil spring
B.a sealing ring
C.an oil distributor ring
D.main seal ring
