查询词典 hodograph

The authors proposed using Pythagorean hodograph spirals in approach ing and corner turning for high speed milling to reduce jerks in motion and so that the tool life is lengthened,and the effective machining speed and machining accuracy are improved.

提出用Pythagorean速端螺旋线作为高速切削加工导入和角部的平稳转向过渡曲线，可以减小加工过程中传动机构及刀具受到的冲击，提高了加工精度和平均进给速度。

By using complex analysis in representing parametric curves to avoid the complicated representation and fuzzy calculation, the cubic couple of Pythagorean hodograph is constructed, which satisfies C 1 Hermite interpolation conditions.

相应的两条 Bézier曲线表示及其控制顶点的计算简单方便。所得 4条插值曲线中，通常有 1条曲线具有很好的几何形状特征。结果可直接应用于各工业产品设计及加工领域中。

Thephase of the meridional component often leads that of the zonalcomponent about /4-/2 (equivalent to 1.5-3 h), resultingin a clockwise hodograph of the wind vector with respect to time.

纬向和经向风的动态Lomb-Scargle谱表明，半日潮是中间层高度上占支配地位的波动，其谱峰对应的频率一般与1/12 c-1有偏离，说明它们经常处在被扰动状态。

Two-dimensional seepage flow of free-surface over cutoff wall has been solved by conformal transformation method in this paper. By introducing the hodograph plane and utilizing Schwarz-Christoffel transform, the mapping relational formula between the physical plane Z and complex potential plane has been deduced.

对于越过截渗墙的剖面二维含自由面的渗流，应用保角变换方法求解，通过引入速度矢端平面和应用Schwarz－Christoffel变换，推导出了物理平面Z和复势平面的映射关系式。

Firstly, a quintic PH-spline curve is used to approximate a cubic Bézier curve within a bound. The convergence for the approximation is proved.

研究用C1连续的五次Pythagorean-Hodograph样条曲线逼近一给定的三次Bézier曲线，证明了这种逼近算法在常用误差测度下的收敛性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。