A large basin cut into the shore,closed of
题型:单项选择题
问题:
A large basin cut into the shore,closed off by a caisson,and used for drydocking of ships is known as a().
A.slipway
B.graving dock
C.ground warp
D.caisson dock
A large basin cut into the shore,closed off by a caisson,and used for drydocking of ships is known as a().
A.slipway
B.graving dock
C.ground warp
D.caisson dock