Construction workers are measuring distances with a level. 施工人員正在用水準儀進行測距工作。
It is easy to use a water level to measure things, but you need to do many experiments before mastering it. 水準儀的測量方法很簡單，但也需要通過多次的實踐才能夠掌握。
Plot the altitude of the crossroads and other significant sites of the northern plateau with no other instrument but our stone mason's level. 在除了石制水平儀之外，沒有其他儀器的情況下，測量出十字路口以及北部高原重要地點的海拔高度。
A surveying instrument consisting of a spirit level and a sighting tube,used to measure the angle of inclination of a line from the observer to the target. 由一個水平儀和一個觀測管組成的測量工具，用來測量從觀測者到目標的直線的傾斜角。
