用热浸蚀方法可显示磷共晶中组织组成物的形态和颜色特征。
The morphology and color characteristic of microstructure of the phosphide eutectic can be showed with cold and hot erosion method.
本文采用热酸浸蚀试验，化学成份分析和金相分析等手段，对45钢轴所出现的发纹进行分析。
The hair lines of 45 steel driving axle when quenching and tempering was analysed by heat etching, chemical analysis and metallographic.
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