This paper brief introduces the mechanism, damage and restraining method of high order harmonic.

本文简单介绍了高次谐波产生的机理、危害及有效抑制干扰的方法。

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This paper brief introduces the methods of line extract from image, and compares the two methods.

文章首先简要介绍了图像中线段提取的两种算法，并对这两种算法进行了比较。

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This paper brief introduces the computer simulation technique and its application in port engineering.

简要介绍了计算机模拟技术以及它在港口工程方面的应用。

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