Synthesizing very long alkanes is not trivial, especially in the quantities and purities required to put these simulations to the test.

合成很长的烷烃并不轻松，尤其是达到实验所需要的数量和纯度。

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After processing, the purities of nobiletin and tangeretin were improved 3.7 times and 3.2 times, respectively.

经过处理后川陈皮素和橘皮素的纯度分别提高了3.7倍和3.2倍。

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The recovered sulfur generally had purities higher than 96.5%, and the sulfur recovery efficiency were higher than 90%.

试验结果表明，回收的硫磺纯度在96．5％以上．硫的回收率在90％以上。

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The recovered sulfur generally had purities higher than 96.5%, and the sulfur recovery efficiency were higher than 90%.

试验结果表明，回收的硫磺纯度在96．5％以上．硫的回收率在90％以上。

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