并通过对比试验，获得可行性结果。

Through contrast test, we get feasible results.

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通过对比试验研究了石屑混凝土的力学性能。

Compared with ordinary concrete, the mechanical properties of stone-chip concrete were studied.

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通过对比试验探讨了对芦荟中芦荟苷、芦荟大黄素的提取方法。

The extraction methods of aloin and aloe-emodin in Aloe barbadensis was explored by contrast experimentation.

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