通过试验，发现无水芒硝岩盐是一种软岩，强度较低，变形较大。
Through the testing and analysis, it is found that thenardite salt rock is a kind of soft rock, the strength of which is low and the deformation is distinct.
本文以等物质的量的反应规则建立了岩盐、芒硝中各种化合物的质量分数的计算公式。
In this paper some formulas to calculate the mass percentage of all sort of compound in and rock salt and mirabilite were created on the reaction rule of equal amount of substance.
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