PolarVector – an unusually long-lived Polar outbreak bringing very cold weather.
极矢量——异乎寻常长时间的极地寒潮带来的强冷空气。 。
2
P-wave displacement is a polarvector, and its direction remains unchanged when we move it from right hand coordinate system to left hand coordinate system(or in the opposite way).
纵波位移是极向量,在坐标系由右手坐标系变成左手坐标系(或相反)时,不改变位移方向;
3
The results show that the interference-free tool path can be generated with polar projection method and the even variable cutter axis vector can be obtained.