Determination of true density in high purity silica powder
高纯硅微粉真密度的测定
No evident relation between coke true relative density and microstrength was f.
焦炭显微强度与真相对密度间无明显得相关关系。
Determination of true relative density of coal by helium replacement method was researched in this paper.
就氦气替换法测定煤的真相对密度进行了研究。
The determination of true density in high purity silica powder is studied by the method of boiling and taking off gas.
研究了煮沸脱气测定高纯硅微粉真密度的方法。
True density separation method for investigation of formation and combustion characteristics of unburned carbon in fly ash
用真比重分离法研究一种飞灰残炭的生成途径和再燃特性
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