It's also why, to extract a given quantity of metal, less material needs to be processed, which is the most environmentally destructive part of mining.
同样，提取同样数量的金属所需处理的物质相对较少。
The power available from a given quantity of gas is directly proportional to its heating value.
对给定数量的汽油，其产生的有效动力与它的热值成正比。
Solubility: Solubility of a substance in a certain solvent is defined to be the maximum amount of the substance which will dissolve in a given quantity of the solvent.
溶解度：在一特定的溶剂中，一物质的溶解度定义为：此物质溶解在一已知的溶剂之最大量。
Solubility: Solubility of a substance in a certain solvent is defined to be the maximum amount of the substance which will dissolve in a given quantity of the solvent.
溶解度：在一特定的溶剂中，一物质的溶解度定义为：此物质溶解在一已知的溶剂之最大量。
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