Technical paper classification of all technical documents and files, number and place on file.
所有技术文件，技术资料及技术图纸的分类，编号归档工作。
But Subject Classification And Code has laconic system, clear plot, and simplicity of operation. In a word, it is good for the paper classification.
《学科分类与代码》体系简洁，划分明晰，无技术性要求、操作简单，具有简明性、易用性和实用性，适用于期刊论文的分类。
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