单项选择题
A.the burning B.the fuel C.the air charge D.the engine piston
The bore of each cylinder is formed in a liner which ca...
单项选择题The bore of each cylinder is formed in a liner which can be （） when worn out.
A.welded B.replaced C.drilled again D.bored
The bed-plate is secured in the longitudinal direction ...
单项选择题The bed-plate is secured in the longitudinal direction by means of bolts known as （）.
A.end-chock bolts B.side-chock bolts C.through bolts D.tie rods
The bearing shells depend on the accuracy of （） to held...
单项选择题The bearing shells depend on the accuracy of （） to held them in a truly circular shape.
A.the gap B.the clearance C.the bore D.the housing
