The reasons of the corrosion occurred in the titanium pressure-relief valve in the desulfurizing unit were studied by optical microscope and energy spectrometer.
利用金相显微镜、能谱仪等分析方法，分析研究了脱硫装置中钛制减压阀的腐蚀原因。
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Aemission spectrometer, micro-hardometer, optical microscope and scanning electron microscope were used to analyze the reason of crack on connecting rod unit assembly for piston of car engine.
The prototype of the high resolution solar X-ray spectrometer includes readout circuit for the front detectors, data acquisition unit, payload handling data unit and power supply unit.