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When propagating light\|ray passes through two fixed points in the gradient index mediums and a cuspidal variable\|point （at this point the trace equation of propagating light\|ray is non\|differentiable） at the borderline of two different GRIN mediums, the mathematical relationship, which the trace equation of propagating light\|ray and borderline equation of two different GRIN mediums should satisfy, is derived by the Fermat's principle and calculus of variation.

当光线通过梯度折射率介质中两个固定点和两个GRIN介质界线上的可动尖点（光线轨迹方程的不可微点）时，由费马原理和变分法运算推得传输光线的轨迹方程与两种不同GRIN介质的界线方程应满足的微分关系式。

Come to the point 到达要点 I was just coming to the point when you cut in.

你插嘴时，我刚要谈那一点。

This article involves in plane cutting method to generate the measuring path and calculate the measuring point. The method to calculate the anchor point and the offsetting method are giver by the author.

本文研究了截平面法生成理论测量路径和计算测量点，给出了简单稳定的方法计算测量点，计算定位点的算法采用了等距法

CMM ; measuring path ; plane cutting method ; measuring point ; anchor point

三坐标测量机；测量路径；截平面法；测量点；定位点

Since the White Dagoba is the highest point in Beihai Park, it served as a vantage point with a beautiful view of the whole park.

由于白舍利塔是最高点，北海公园，它是一个高度，与美丽的公园。

For this reason we introduce a kind of digital temperature sensor TMP05 and its daisy-chain for multi-point temperature measurement, and then we design the hardware circuit and software flowsheet for the daisy-chain multi-point temperature measurement, which was used for the temperature measurement of visibility meter.

本文介绍了 TMP05 数字式温度传感器及其菊花链式多点测温原理，并且给出了 TMP05 的菊花链式多点测温在能见度仪温度测量中的软硬件设计。

Data for 1000 point sliding window window size is 30, each time moving a point of data.

数据为1000个点，滑窗窗口大小为30，每次滑动一个点的数据。

Because In forwarding multicast the way of switching data is not point to point, the traditional security model on end to end is not conformable.

由于多播网络体系结构在多播过程中参入数据发送的对象不是点对点的方式，所以传统的端到端的安全不适合多播网络体系结构。

In forwarding multicast the way of switching data is not point to point,the traditional security model on end to end is not conformable.

由于多播网络体系结构中多播数据发送不是点对点的方式，因此传统的端到端的安全不适合多播网络体系结构。

One decalescence peaks appears in the DSC curve of PVC and the melting point is about 86.0℃. There are two decalescence peak of the composite of wheat straw-PVC, and its melting point is not clear.

聚氯乙烯树脂在DSC曲线中，出现一个吸热峰，熔点约为86.0℃；而麦秸与聚氯乙烯树脂复合后的人造板的吸热峰有两个，熔点明显不同。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。