The cast iron guide-ways for () are attached to the top section and seal off the crankcase.
A、the connecting rod
B、the cross-head
C、the piston rod
D、the air box
A、the connecting rod
B、the cross-head
C、the piston rod
D、the air box
A、A.east iron is a cheap material B、B.cast iron can pollute sea water C、C.cast iron has mere corrosive than bronzes to sea water D、D.cast iron is more corrosive to sea water when it meets with bronzes
A、twice as large as with a cast iron piston B、the same size as with a cast iron piston C、half as large as with a cast iron piston D、the same size as the crown of an aluminum piston
A、cast iron has weakness B、cast iron can stand up shock loading C、cast iron fittings are only suitable in low pressure situation D、east iron fittings are not suitable in low pressure situation