pocket level的用法和樣例：
例句
- 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。
