本文试验了以稀硝酸作为黑、白钨矿分离的选择性溶剂。
Diluted nitric acid is used as a selective solvent to separate scheelite from wolframite.
在溶剂精制过程中不被选择性溶剂溶解和脱除的那部分油。
In solvent refining practice, that portion of the oil which remains undissolved and is not removed by the selective solvent.
它主要用于硝基漆及其他树脂涂料，还用作医药产品的选择性溶剂，并用于增塑剂及制造与化学有关的有机物。
Its major USES are in nitrocellulose lacquers and other resin coatings, as a selective solvent for pharmaceutical products, in plasticizers, and in manufacturing chemically related organics.
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