... volume density 体积密度 volume extraction ratio 矿床总体积和采空区总体积之比 volume of explosion gas 瓦斯爆炸体积 ...
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volume e extraction ratio 矿床总体积和采空区总体积之比
The effect of temperature, time and phase volume ratio on the extraction yield of cytochrome C is discussed.
研究了提取时间、温度、相体积比以及助提取剂用量对提取率的影响。
The optimum extraction time and ratio of sample weight to extractant volume were chosen according to the extraction results of indicator parameters and heavy metals in leachates.
分别根据表征参量和重金属在萃取溶液中的含量变化确定最优萃取时间和萃取样液比。
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