Apparent altitude is sextant altitude corrected for().
- Aparallax and personal error
- Binaccuracies in the reading and reference level
- Cvisibility and magnitude
- DAll of the above are correct
Apparent altitude is sextant altitude corrected for().
1、“标高”、“高度”和“高”分别用英文elevation,altitude,h
“标高”、“高度”和“高”分别用英文elevation,altitude,height表示。A正确B错误
2、A marine sextant has the index arm set
A marine sextant has the index arm set at zero and the reflected image of the horizon forms a continuous line with the actual image. When t...
3、Apparent wind speed blowing across a v
Apparent wind speed blowing across a vessel under tow can be measured by a(n)().AbarometerBwind vaneCanemometerDthermometer
4、在WGS-84测量规范中,高度(altitude)和高(height)是同一
在WGS-84测量规范中,高度(altitude)和高(height)是同一个概念。A正确B错误
5、A apparent B desirable C negative
A apparent B desirable C negativeAD plausible
6、When the wave period and the apparent
When the wave period and the apparent rolling period are the same().Asynchronous rolling occursBroll period decreasesCroll period increasesDroll amplitude is dampened