A.hydraulic current
B.rectilinear current
C.rotary current
D.harmonic current
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A.Papagayo
B.fall wind
C.foehn
D.williwaw
A.Tehuan tepecer
B.Papagayo
C.Norther
D.Pampero
A.crossing
B.transit
C.transfer
D.passing
A.V-shaped ripple with the point of the V pointing upstream
B.V-shaped ripple with the point of the V pointing downstream
C.small patch of smooth water on a windy day
D.smoothing out of the vessel's wake
A.chute
B.stabilized channel
C.slough
D.navigable pass
最新試題
In most cases，the direction of the apparent wind lies between the bow and（）.
Ocean currents are well defined and（）.
In the Northern Hemisphere you are caught in the dangerous semicircle with plenty of sea room available. The best course of action is to bring the wind on the（）.
The direction of the surface wind is（）.
In mid-ocean，the characteristics of a wave are determined by three factors. What is NOT one of these factors?（）.
Low pressure disturbances，which travel along the intertropical convergence zone，are called（）.
The cold ocean current which meets the warm Gulf Stream between latitudes 40°and 43°N to form the cold wall is called the（）.
A tide is called diurnal when（）.
In modern fathometers the sonic or ultrasonic sound waves are produced electrically by means of a(n)（）.
On the pole side of the trade wind belt，there is an area of high pressure with weak pressure gradients and light，variable winds. This area is called the（）.