单项选择题
A.lining B.lined C.made D.in
The crankshafts of medium speed engines are almost inva...
单项选择题The crankshafts of medium speed engines are almost invariably solid （） from a single piece of steel.
A.forged B.cast C.made D.shrunk
The crankshaft receives and transmits the full working ...
单项选择题The crankshaft receives and transmits the full working power of the engine and is subjected to fluctuating （）.
A.bending stresses弯曲应力 B.torsion stresses扭转应力 C.shear stresses剪应力 D.All of the above
The crankshaft of diesel engine is supported by （）.A.te...
单项选择题The crankshaft of diesel engine is supported by （）.
A.tension stretch B.tie rods C.through bolts D.main bearings
