作为应用实例，介绍了阀类零件多工位自动清洗线的总体设计和机械结构及功能。
Finally, as an applied example, the paper introduces the general design of multi-locations automatic cleaning line for valve parts as well as its mechanical structure and functions.
并用面向对象的程序设计方法，设计了实现点、线、面符号库的程序类结构。
And a structure of program class is also designed by means of Object_Oriented design.
本文提出了双稠哌啶类生物碱对松材线虫的杀线活性强弱主要受其分子结构中官能团对的类型及其中的官能团的类型控制的假说。
A hypothesis that nematicidal activity of quinolizidine alkaloids is mainly determined by types of functional group pair and types of functional group in their molecular structures was proposed.
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