The method of laser MS in measuring organic compounds on fibrous paper provides a new analytical tool for some special analysis such as security check, forensic analysis, food sanitary inspection.
激光质谱对纸上有机物作高灵敏度直接测定为某些特殊分析应用如安全检查、刑事侦察和食品卫生检查等提供了新方法。
The Sound voltmeter composed of microprocessor, which is designed by the author of the paper, provide a new electronic measuring tool for voltmeter measurement under special conditions.
为了在特殊场合下，准确地测量电压，可以设计一种用微处理器组成的声音电压表。
The Sound voltmeter composed of microprocessor, which is designed by the author of the paper, provide a new electronic measuring tool for voltmeter measurement under special conditions.
为了在特殊场合下，准确地测量电压，可以设计一种用微处理器组成的声音电压表。
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