In the paper, the whole process of bearing product CAD is systematically introduced, and the working flowchart and program chart of CAD system are given.
文中系统地介绍了轴承产品计算机设计的全过程，并给出了CAD系统工作流程图和程序框图。
The synthesis methods of resorcinol were introduced systematically in this paper, and the summary comments for every means were made.
系统介绍了间苯二酚诸多的合成方法，并对其中的磺化法、异丙苯法、芳化法和取代法进行了简要的评述。
Various processing and disposal technologies of municipal solid waste were systematically introduced, analyzed and compared in the paper.
本文介绍了城市生活垃圾的各种处理、处置方法，并对各种处理、处置方法进行了系统地分析和比较。
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