Angularity - Angularity is the condition of a surface, axis, or center plane, which is at a specified angle (other than 0, 90, 180 or 270 deg.) from a datum plane or axis.

• 角度-- 就是一个表面；轴；或中心面的相对与基准平面或基准轴的角度状态(0；90；180；270除外).