Under these experimental conditions, the yield of piperazine is about 85%.

在该实验条件下，哌嗪的收率达到85%左右。

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The results indicate Portland cement has the best retention capability in these cement at experimental conditions.

结果表明，在实验条件下，硅酸盐水泥对放射性核素铀有较强的滞留性能。

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Under these conditions, the recovery ratio of gold is about 99.8%, and the continuous extraction experiment can be carried on. The experimental conclusions aretestified by the theoretical discussion.

在此最佳操作条件下，金的回收率可达99.8%，并可模拟工业生产进行连续提取，同时，对本实验的结果进行了一定的理论计算和分析。

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