单项选择题
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
The bearing shell generally has （） for location and oil...
单项选择题The bearing shell generally has （） for location and oil grooves round the center of its axial length.
A.tips B.tags C.lips D.keys
