parallelism tolerance的用法和样例：
例句
- Radial run-out tolerance and axiality tolerance that often used in tolerance of form and position are positioning tolerance.
径向跳动公差与同轴度公差是形位公差项目中常用的位置公差。 - If the angle of the slot needs to be controlled better than the angularity provided by the position tolerance, an angularity tolerance may be added as a refinement.
若为了更好地控制槽的角度，可在给出位置度公差的基础上，还可给出倾斜度公差要求。
