compass prime vertical [航] [水运] 罗盘的东西圈
The deviation from vertical, irrespective of compass direction, expressed in degrees.
偏离垂直方向的角度，与指南针方向无关，以度数来表示。
Turn the bezel dial to Time, Ride, Compass, or speed and record the total vertical, number of runs, speed and altitude of your kick-ass powder day.
打开面板拨号时间，平顺，指南针，或速度和记录总垂直，一些运行，速度和高度的揭幕驴子粉一天。
It contains a telescope, a compass, and a protractor, and it's used to measure horizontal and vertical angles.
一个指南针，一个测角器，它用来测量水平和垂直的角。
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