单项选择题

The function of the bilge keel is to（）.

A.reduce the rolling of the vessel
B.serve as the vessel's main strength member
C.add strength to the bilge
D.protect the vessel's hull when alongside a dock

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单项选择题

The fore and aft run of deck plating which strengthens the connection between the beams and the frames and keeps the beams square to the shell is called the（）.

A.garboard strake
B.limber strake
C.sheer strake
D.stringer strake

单项选择题

The floors in a vessel’s hull structure are kept from tripping，or folding over，by（）.

A.face plates
B.bottom longitudinals
C.longitudinal deck beams
D.transverse deck beams