Straightness errors的用法和樣例：
例句
- The system structure and the mathematic model of least square method to evaluate the straightness errors are introduced.
介紹了系統結構原理以及空間直線度誤差的最小二乘評定法數學模型。 - Spatial straightness error is one of the most complex geometric errors, and its evaluating algorithms are under exploration.
摘要空間直線度誤差是最複雜的形位誤差之一，其評定演算法一直處於探索之中。
