单项选择题
A.the tiller arms B.the swivel blocks C.hunting gears D.the rams
Anchor capstans are used in some installation where the...
单项选择题Anchor capstans are used in some installation where the cable lifter rotates about a ().
A.horizontal axis B.crankshaft C.vertical axis D.camshaft
Prior to running the hydraulic pump, examine the system...
单项选择题Prior to running the hydraulic pump, examine the system carefully and ensure that the lever of control valves is in () position.
A.neutral B.end C.opening D.closure
Anchor() are used in some installations where the cable...
单项选择题Anchor() are used in some installations where the cable lifter rotates about a vertical axis.
A.windlasses B.drums C.capstans D.warp ends