A.the time of day
B.the seasons
C.geography
D.All of the above
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A.sphere
B.oblate spheroid
C.spheroid of revolution
D.oblate eggoid
A.air gap
B.freeboard
C.penetration
D.water depth
A.range of tide
B.height of tide
C.charted depth
D.actual water depth
A.difference in longitude
B.mid-longitude
C.departure
D.meridian angle
A.increases in north latitude and decreases in south latitude
B.decreases as DLO increases
C.increases with increased latitude
D.decreases with increased latitude
最新試題
During daylight savings time the meridian used for determining the time is located farther （）.
Clearance gauges at bridges indicate （）.
The height of eye correction is smaller than geometrical dip because of （）.
The height of tide is the （）.
Conditions for crossing a rough bar are usually best at （）.
Information on the operating times and characteristics of foreign radiobeacons can be found in which publication? （）
The Earth has the shape of a(n) （）.
Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．
The height of a light is measured from which reference plane?（）
During a period of whiteout，you should expect which of the following（）.