1·At the time of purchase, the user must check the slot size and a wire board tungsten steel precision, smoothness, especially with the line wheel and the arc part of roundness.
在购买的时候，用户必须检查钨钢件导线板的尺寸和线槽的精度、光洁度，特别是和线轮接触的圆弧部分的圆度。
2·The roundness error serves the preparation for setting up the analyzing experiment system for theory research of dynamic measurement precision.
圆度误差值为组建用于动态测量精度理论研究的分析实验系统做准备。
3·Stem and packing chamber walls. Close roundness, straightness and superior 8–16 RMS or burnished surface finish.
阀杆和填料腔壁。精确的圆度和平直度，高级8-16 RMS或镜面表面光洁度。
4·In this paper, the Kalman filter approach is used to accurately estimate the parameters of first-order model for the evaluation of roundness errors.
本文利用卡尔曼滤波方法精确地估计圆度误差评定中一阶模型参数。
5·A laser scanning non contact measuring method and a measuring system for the roundness errors of large sized rotating parts are presented.
利用激光狭缝扫描原理和光电传感技术，提出了一种用于测量大型回转体类零件圆度误差的激光扫描非接触测量方法和测量系统。
1·It should also be straight and not too curvyto downplay the roundness of the face.
眉毛线条也可以是直的，不用过于弯曲使脸显得不那么圆。
2·But then again,what is the apple once you take away its roundness, redness, etc.?
但话又说回来，一旦你拿走苹果的圆的形状和红的颜色等，那么到底什么是苹果？
3·Well, there's an explanation of how it could be that things that are not themselves perfectly round could remind us, could make us think about perfect roundness.
这也许解释了为什么有些,本身并不是那么圆的东西,会让我们想到正圆这个型相
4·Evolution is as firmly established a scientific fact as the roundness of the Earth.
进化是既成的科学事实，和地球是圆的一样稳固。
5·Roundness is an abstract term, so long as one considers it by itself and separates if from any subject that is round.
“圆”这个字如果单就其本身而言，而不与任何圆形物体相联想时，它是一个抽象名字。