Taking H-800 electron microscope for example, this article introduces some faults appearance, faults analysis and method of faults exclusion.
本文以H - 800型透射电子显微镜为例，介绍了几例故障现象、故障分析及故障排除方法。
Ion-exclusion chromatography is an effective method for analysis of organic acids.
离子排斥色谱法(IEC)是分析有机酸的有效方法。
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