单项选择题

In automatic （） the winch may be overhauled and wire is paid off the barrel at a pre-determined maximum tension.

A.cranes
B.windlass
C.capstans
D.mooring winches

相关考题

The （） is used for hauling in or letting out the wires ...

单项选择题The （） is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A.cranes
B.winch barrel
C.capstans
D.windlass

（）with various arrangements of barrels are the usual mo...

单项选择题（）with various arrangements of barrels are the usual mooring equipment used on board ships.

A.cranes
B.winches
C.capstans
D.windlass

In order to culture and propagate enough bacteria to tr...

单项选择题In order to culture and propagate enough bacteria to treat the body and galley wastes（）

A.a new bacteria colony should be put into the plant in advance
B.the disinfection chemicals should be always used
C.the air blower should be started and keep running in advance
D.the nutrient for bacteria should put into plant in advance

船舶电气与船舶安全

In automatic （） the winch may be overhauled and wire is paid off the barrel at a pre-determined maximum tension.