观测最近陆岸的物标获得准确船位和方向并送给报房和救生艇指挥员。
Observing the nearest shore marks to obtain accurate positions and bearings, and sending them to radio office and lifeboat commander.
根据对船位线交角的最低要求，论述了在太阳移线定位中，以中天纬度线为参考，进一步安排中天附近以外观测太阳船位线所需时间间隔的估算。
According to the angle requirement for two ships position lines, this paper proposes the method to arrange the time to take the sun sight further than the one near the noon sight.
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