一、前言“测试中心”的任务是进行材料内部结构的分析,属微观和亚微观测试,它使用的设备,如电子显微镜、x射线衍射分析仪、光谱、质谱和色谱分析仪以及核磁共振分析仪等都属精密仪器,要求环境恒温、防尘、防潮,有的还要求防震、防电 I. INTRODUCTION The mission of the “testing center” is to analyze the internal structure of materials. It is a microscopic and submicroscopic test. It uses equipment such as electron microscopes, x-ray diffraction analyzers, spectrometers, mass spectrometers, chromatographic analyzers, and nuclear magnetic resonance analysis. Instruments, etc. are all precision instruments that require constant temperature, dust, moisture, and some also require shock and electricity protection.