1. Almanac gives you the capability to determine the times of rising, setting, and meridian transit for the sun, the moon, and the planets.
年历让您的能力，以确定倍上升，设置，经络过境太阳，月亮和行星。
2. A telescope mounted on an east-west axis and used to time the transit of a celestial body across the meridian.
装在东西轴上用来安排天体的中天通过子午线的望远镜。
3. Absolute determination of the transit azimuth through prime vertical and meridian observations
用卯酉圈观测绝对测定子午仪的方位角
4. The preliminary test observations for determining azimuth equations with a refitted transit instrument, which may be used to observe the stars in the meridian and.
把中星仪改装成在子午方向和卯酉方向都可以观测的仪器后，进行了测定方位差的试验观测。