1·Positive values for the angle rotate the object clockwise if you look along the positive rotation axis.
角度为正值，则表示若您顺着正旋转轴方向观察，对象是按顺时针旋转的。
2·When using encoder sensor in precise measurement, the shaking of rotation axis can cause change of output waveform of sensor and wrong count.
编码式传感器应用于精密测量时，由于旋转轴的晃动可能引起传感器输出波形的抖动，从而导致计数错误。
3·Using magnetic fluid dynamics and thermodynamics theory, a study on the results of axial bearing pressure ability of rotation axis magnetic fluid static seals was introduced.
介绍了利用磁流体动力学、热力学理论，研究旋转轴磁流体静密封轴向承压能力的结果。
4·Rotation axis built-in lamp.
旋转轴内置灯管。