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n.[机]平直度；率直；笔直
1、flatness and straightness───平直度
2、straightness bars───直杆
3、straightness spec───直线度规范
4、straightness tir───直线度tir
5、straightness def───直线度定义
6、straightness training cavesson───直线训练cavesson
7、straightness training───直线度训练
8、straightness test───直线度试验
1、He was 17, could barely speak Mandarin and was awestruck by the straightness of the city's poplar-lined roads.───那年他17岁，说着满腔生硬的普通话，惊讶于宽阔的城市道路和大楼。
2、Also straightness is an important part of submission.───也是服从的重要部分。
3、NON-ROTATING STEM Non-rotating stem has close roundness and straightness tolerances and is burnished for a superior finish.───不旋转阀杆不旋转阀杆具有精密的圆度和平直度公差，并且经过抛光达到极高的抛光度。
4、The appearance of Longjing tea is characterized by smoothness, flatness, straightness and its jade-green color.───龙井茶的外形特点是光、扁、平、直、色如翠绿。
5、The resultant phase change can be converted to a straightness measurement according to the relationship of the mirror angle.───由此产生的相变可转换为直线度测量，根据关系的镜子角度。
6、Straightness is an important performance of the rail. It influences running speed, safety and comfort of trains.───平直度是衡量钢轨质量的重要指标之一，它直接影响列车的运行速度、安全性及舒适性。
7、Measure the straightness parallelism and squareness.───测量直线度、平行度和垂直度。
8、Behind it thy seat is woven in wondrous mysteries of curves, casting away all barren lines of straightness.───你的座位在它后面编织成神秘而令人惊叹的曲线，抛弃了一切直线的重负。
9、The conclusion that sequential two-point method is the best fit method for straightness measurement was arrived at the end of this paper.───最后由此得出两点法与三点法相结合的组合方法是最适用于超精密直线度测量的误差分离方法的结论。