Unanimous Approximation and Smooth Tolerance of Circular Arc Fit for Planar Range of Points and Their Application

平面点列的一致逼近及 容差平滑圆弧 拟合及其应用

Error analysis shows that by selecting the parameter increment rationally the segment tolerance of interpolation can be assured to satisfy the desired machining accuracy and the real motion feedrate of machine tool can be controlled to fit the programmed feedrate .

误差分析表明，只要合理选择参数增量，总能保证插补的弓高 误差满足加工精度要求，总能控制机床的实际运动速度 满足程编 要求。

Thus the different clones from the toxic nature of the tolerance of stress were significantly different which is fit For the future with nurturing the growth of Chinese fir planted on the ground to select superior clones provide a theoretical basis .

可见，不同无性系对自毒物质胁迫的 忍受 能力有明显差异，这为今后培育 适于在连栽地上生长的杉木优良无性系选择提供理论依据。

This article introduces least square method of unanimous approximation and smooth tolerance of segmented circular arc fit for planar range of Points .

本文用最小二乘法一致逼近及 容差平滑分段圆弧 拟合平面点列。

Through using of degree of freedom and tolerance zone of a feature Assembly model is established to present fit feature component feature assembly geometric relation assembly dimension assembly tolerance and assembly datum etc.

利用特征自由度和特征 公差带，建立装配模型来表示 装配设计中的 配合特征、零件特征、装配几何关系、装配尺寸关系、装配公差关系以及装配基准参照系等。

The unilateral system permits changing the tolerance while still retaining the same allowance or type of fit .

单向体系允许在依然保留相同允差或 配合类型的情况下改变 公差。