The instrument category is an important category in Chinese semantic categories system.
本论文研究的工具范畴，是汉语语义范畴系统中的一个重要范畴。
Selects VC 6.0 as software development; tools, according to virtual instrument idea, each instrument category is designed as an abstract class.
以VC 6.0为软件开发工具，利用虚拟仪器的设计思想，将各类测试仪器设计成各个抽象类。
Selects VC 6.0 as software development; tools, according to virtual instrument idea, each instrument category is designed as an abstract class.
以VC 6.0为软件开发工具，利用虚拟仪器的设计思想，将各类测试仪器设计成各个抽象类。
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