Here's a short gnuplot example that illustrates 3-d function plotting with contours and hidden line removal.

下面是一个简单的gnuplot例子，它给出了一个具有等高线和隐线消除的3 - D图形。

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This paper presents a pixel level algorithm for drawing implicit surfaces, which accomplishes hidden line removal according to the feather of implicit surface.

文章提出了一个隐式曲面的象素级生成算法，并针对隐式曲面的特点实现了隐藏线消隐。

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The base contour is enabled along with hidden line removal, and the sinc plot is created with the splot command using the internally available math library functions.

同时还启用了基本的等高线和隐线消除特性，最终的绘图是利用 splot 命令使用数学库内部的函数来创建的。

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In a single email, I may find a romantic, candle-lit dinner and a bikini-line laser hair removal.

FORBES: Are Group Deals Killing Brands?

And people who are in America illegally have a responsibility -- to pay their back taxes and admit responsibility for breaking the law, pay a penalty, learn English, pass criminal background checks, and get right with the law -- or face removal -- before they can get in line and eventually earn their citizenship.

WHITEHOUSE: Naturalization Ceremony for U.S. Service Members