两体系平衡饱和液的密度和折光率均随着乙醇含量的增大而减小。
The values of density and refractive index of the saturated solution decrease with the ethanol content increasing.
由于完全互溶双液系平衡相图的绘制需要许多组数据，而且要绘制折光率-组成工作曲线，数据处理和绘图工作量较大。
The phase diagram of completely mutually soluble double-fluid system needs not only many sets of data, but also map work curve of refract rate-composition, data processing and mapping larger workload.
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