parallelism tolerance的用法和樣例：
例句
- Radial run-out tolerance and axiality tolerance that often used in tolerance of form and position are positioning tolerance.
徑向跳動公差與同軸度公差是形位公差項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.
若為了更好地控制槽的角度，可在給出位置度公差的基礎上，還可給出傾斜度公差要求。
