单项选择题

A Doppler log in the volume reverberation mode indicates（）.

A.speed being made good
B.speed through the water
C.the set of the current
D.the depth of the water

点击查看答案&解析

上一题目录下一题

单项选择题

A.velocity of the current
B.bottom characteristics
C.depth of the water
D.speed over the ground

单项选择题

A.tree or log awash in a nearly vertical position
B.crew member who refuses to work
C.upstream end of a land wall
D.buoy that is adrift

单项选择题

A.high pressure system
B.low pressure system
C.high dew point
D.low dew point