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- Definition : A strophoid of a circle with the pole O at the centre of the circle and the fixed point P on the circumference of the circle. 定义：在圆上的环索线，以圆心为极点，圆周上的一点为固定点，所作出的图形！
- As illustrated in figure 7-2, the path lengths from the elements to point P equalize as P approaches infinity. 参看图7-2，从各单元到接近无穷远的P点的路径长度相等。
- A point P ofthe scene is considered to be in the umbra if it can not seeany part of L, i.e. it doesn’t received any light from the lightsource. 场景中的点 P如果看不到 L的任一部分，就被认为是在L的全影中， 也就是说，它从光源接收不到任何光。
- Points P and Q represent two positions of the particle. P点和Q点分别表示该质点的两个位置。
- Similar Point : Given two circles, construction their outer and inner tangent lines.Then the outer similar point P is the intersection of outer common tangents of two circles. 相似点：给定两圆，作两圆之外公切线及内公切线，则两外公切线的交点P为"外相似点"；
- PQ represents a path connecting two points P and Q on different contour lines. PQ代表一条连接P和Q的小径，而该两点位于两条不同的等高线上。
- AB and CD intersect at (the point) P. AB线和CD线在P点相交。
- At this point your logic is at fault. 在这一点上你的推理是错误的。
- In point of cost, we'll have to discuss it at the next meeting. 至于费用方面，我们只好留到下次会议再讨论。
- Making a petit point pillow is exacting work. 做一个小花边编织枕头是一项细致活儿。
- I mentioned this point by way of cautioning you. 我提出了这一点用以警告你。
- Can you swing them round to my point of view? 你能让他们转而支持我的观点吗？
- I don't see the point of her last remark. 我不明白她最后那句话的意思。
- I have some sympathy with that point of view. 我比较赞成这种看法。
- You needn't labor a point that is perfectly plain. 这点很明显，你用不着讲个没完。
- I didn't see the point of his last remark. 我不理解他最后那句话的意思。
- She needs to win this point to level the score. 她要赢得这一分才能将比分扳平。
- Must he pound on the table to make his point? 要证明他自己的观点是正确的，难道就非得擂桌子不可吗？
- All his observations were short and to the point. 他的观察报告都很简单扼要。
- The point he spoke of will be attended to. 他所说的要点将被注意。
