A.Electrical loading B.Mechanical distribution C.Compressibility of air D.Mechanical friction
A.does not exceed B.should exceed C.should be up to D.should be no more than
A.to discharge B.discharge C.discharging D.to be discharging
A.to use B.to operate C.maneuvering D.using
A.The cranes may be operated independently B.The cranes may be interconnected for twin operation C.When twinned,the crane rotation on the foundation assembly is unlimited D.All of the above