The telescope can then be rotated around 360 degrees in X axis so that it can scan the horizon in all the directions of the compass.

现在，我们就可以将望远镜饶x轴旋转360度，从而观察（以望远镜为中心的）水平包围圈的所有方向。

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Compass - lets you pick any object that will be used as a north indicator. The object's positive Y-axis will be used as the north indicator for the sky system.

指南针-允许你点击任何物体作为指南针，该物体的y轴将作为物理天空系统的正北。

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The Oregon series has a built-in 3-axis electronic compass with accelerometer tilt compensation, which shows where users are heading even when they are standing still, or not holding it level.

ENGADGET: Four new Oregon touchscreen GPS devices pop up on Garmin's website (updated)

Examples include the FSM-SENS-1, a 6-axis sensor-only module that integrates with an external Freespace MotionEngine, and the FSM-SI-2, which combines the Freespace MotionEngine on an embedded microprocessor along with a 3-axis digital gyroscope, 3-axis digital accelerometer and optional 3-axis magnetometer (compass) to provide high-performance, calibrated motion data for a variety of applications.

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The Geographic pole is the top of the axis on which the earth spins, the Magnetic pole is where the compass points to, and the Arctic pole is the point on the Arctic Ocean furthest from any land.

BBC: NEWS | UK | British man scores polar success