参数曲线

Chapter 4 uses barycentric subdivision method on arbitrary discrete parametric curves net.

第四章考虑上述的重心加细方法，将之应用于任意的离散参数曲线网上。

Considering the [2] and barycentric subdivision method, chapter 3 imports some discrete objects-discrete parametric curves net.

第三章以离散化思想为指导，参考文献[2] ，并利用重心加细的方法，给出了一系列离散化的研究对象，如离散参数曲线网等。

This work gives an algorithm to simplify the rational curves in this situation. After the approximate proper index is defined, it is computed by solving the semi-algebra system. The greatest common divisor is obtained according to the computing process of approximate proper index.

为此，讨论了这类有误差的有理参数曲线，定义了近似非恰当参数形式和近似非恰当指数，并通过半代数系统计算近似非恰当指数；在给出近似非恰当指数的同时，得到近似最大公因子。

A class of convergent difference schemes with several parameters is proposed. According to the relationship between the subdivision scheme and its difference scheme and the sufficient condition for C\+k continuity, we can devise curve subdivision schemes with arbitrary order continuity.

构造了一类收敛的多参数差分格式，根据细分格式和差分格式的关系以及连续性条件可得到任意阶连续的多参数曲线细分格式。

The parameters are one-to-multi corresponding relationships during the changing process of the piston stroke, which is quite different from the one-to-one mapping relationship in constant piston stroke compressors.

与定行程压缩机性能参数曲线的一一对应关系不同，各参数在变行程范围内表现为多值对应关系。

Parameter curve and curved surface interpolation are the symbolic function of modern number control system.

其中，参数曲线、参数曲面插补是现代数控系统的标志性功能。

In this paper, the monotonicity-preserving interpolation of a kind of plane parameter curve with a shape control parameter is investigated.

研究了一类带有形状可调参数的平面参数曲线的保单调插值方法。

The software interface of touch screen displays the parameter of motor movement, adjusts the PID controller the automatic and manual function, demonstration parameter curve and so on.

触摸屏的软件界面显示电机运行的参数，调节PID控制器的自动手动功能，显示参数曲线等。

In chapter 3, we discuss a novel parametric curve representation scheme on 1D manifold in-depth.

然后，本文分别对广义有理参数曲线和广义有理参数曲面进行了深入的研究。

Some particular parametric curve s are usually seen in engineering survey,whose types are known but whose parameters are unknown.

测量中经常遇到一些特殊参数曲线，已知它的类型，但需要了解它的参数。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。