On the basis of line coding practice in Hefei Basin, the paper presented scientific and reasonable design principle for line coding system.

本文在合肥盆地测线编码实践基础上，提出了科学、合理的测线编码系统设计原则；

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Line coding is an important step in the design of full-duplex transmission system to support ISDN subscriber line basic access.

在ISDN用户线基本接入全双工传输系统的设计中，线路编码是重要的一步。

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The dissertation proposes a novel method for vector coding, i. e. Vector Projection method, which approximately represents a vector with the orthogonal projection of its endpoint onto a straight line.

提出一种矢量压缩编码新方法—矢量线上投影法，它将输入矢量用它在某条空间直线上的投影近似表示。

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He says retailers now have much more information because of bar coding and other technologies that allow them to track their goods from suppliers to the checkout line.

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