确定方向

These birds navigate by the sun.

靠太阳确定方向。

For drill point with planar flanks, using toolroom microscope, we measure the angles relevant to unit vector on the flanks and transform these data into design parameters.

我们利用具显微镜,对平面型后刀面枪钻测量有关的角度,确定后刀面法方向,并将数据转换为设计参数。