数字光栅测角仪是一种新型的角度计量仪器。
The digital and grating instrument isanew kind of instrument for measurement of angle.
用轴测投影图与球面三角相结合求解空间角度，具有精度高和解题迅速的特点。
Axonometric drawing and spherical triangle combined to solve space Angle has the characteristic of high precision and produces rapid solution.
光学测角法是高精度动态角度测量的一种有效的解决途径。
Optical method is one of the most effective way of dynamic Angle measurement with high accuracy.
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