Verification of the vaccine strain: After its preparation, the hybrid virus needs to be tested to make sure that it truly produces the outer proteins of the pandemic strain, is safe and grows in eggs.

验证疫苗株：制备好混合病毒后，必须进行验证以保证其确实能产生大流行毒株的外蛋白，并且是安全的，能在鸡蛋中生长。

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The effects of catalyst preparation method and operating conditions for the hydrogenation activity of catalysts were tested.

分析了催化剂的制备方法、类型及加氢反应条件对催化剂活性的影响。

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The preparation of gelatin hydrolyzed with AS1. 398 neutral protease at different temperatures. The hydrolysis degree was tested by means of formaldehyde titration.

在不同的温度下，用as1.398中性蛋白酶制备水解明胶，甲醛滴定法测定明胶的水解程度。

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Researchers used a ginkgo preparation from Germany, and tested it on mice in which a stroke had been induced.

BBC: Ginkgo could reduce stroke damage

We are in the process, after two years of preparation, of developing a security camp for kids that will be tested next summer.

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