通过外观检验、壁厚测量、扫描电镜、能谱和X射线衍射，对省煤器管腐蚀原因进行了分析。
Through appearance inspection, wall thickness measurement, EDS analysis and X-ray diffraction, the corrosion cause of the coal economizer tube is analysed.
作为一个例子，介绍了电子波衍射晶体管的原理、结构、制造和性能。
As an example, an electron wave diffraction transistor is presented, including its principle, structure, performance and its fabrication.
本文对电孤放电和催化剂热解碳氢气法制备的多层直形纳米碳管的倒空间及其螺旋度，采用电子衍射进行了研究。
Straight carbon nanotubes with multishells produced by arc discharge and pyrolysis of organic gases using metal particles as catalysts have been investigated by means of electron diffraction.
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