The patterns show that divergence of the emerging beam increases with the dihedral angle offset up to completely separate to six beams;

通过衍射图可以看出出射光束的发散程度随着角度误差的增加而增加，直至完全分离成六束光束。

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There are many methods to measure the circular curved line in circuitry construction survey. Angle offset method and tangent offset method are usually used.

在线路施工测量中，圆曲线测设方法有很多，通常采用偏角法或切线支距法。

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There are many methods to measure the circular curved line in circuitry construction survey. Angle offset method and tangent offset method are usually used.

在线路施工测量中，圆曲线测设方法有很多，通常采用偏角法或切线支距法。

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