Deep-sea liners are().
A、A.ferries
B、B.passenger liners
C、C.cruise ships
D、D.ocean going vessels
A、A.ferries
B、B.passenger liners
C、C.cruise ships
D、D.ocean going vessels
A、can usually be detected by radar in a smooth sea at a range of 4 to 6 kilometers B、are indistinguishable from sea return on the PPI C、are invisible to radar when covered with a thick layer of snow D、are usually seen at night before they are close enough to provide a radar echo
A、ballast deep tanks if they are slack B、transfer ballast athwartships C、pump out double bottoms D、fill double bottoms from deep tanks
A、ballast deep tanks if they are slack B、transfer ballast athwarships C、pump out double bottoms D、fill double bottom from deep tanks
A、a heavy anchor with an extra long line used to anchor in deep water B、a cone shaped bag used to slow down the wind drift effect C、a padeye to which the sea painter is made fast D、made of wood if it is an approved type