等到那些大而无当的词经过重建和纯化，再一次可以信赖的时候，他都死去很久了。
By the time the big words come back reconstructed, purified, fit to be trusted once more, he will be long dead.
而且从周质空间分离的蛋白经过镍住得到了进一步的纯化。
Furthermore, the protein isolated in the periplasm can be purified by nickel ion affinity chromatography.
经过一系列分离纯化步骤，从中得到了一种抗氧化性能很强的单体化合物，其抗氧化性能明显强于BHA。
After a series of separation and purification procedures, a pure compound was obtained which HND the optimum activity, its antioxidative activity was clearly stronger than that of BHA.
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