据阿克力博士称，我们居家最糟糕的“隐形杀手”细菌要数那些我们看不到也闻不到但是却可以在七个小时内从单一的个体繁殖成成千上万的细菌群了。
According to Dr Ackerley, the worst bacteria in our homes are 'silent killers' that we cannot see or smell but that can multiply from a single bacterium to several million in just seven hours.
据阿克力博士称，我们居家最糟糕的“隐形杀手”细菌要数那些我们看不到也闻不到但是却可以在七个小时内从单一的个体繁殖成成千上万的细菌群了。
According gto Dr Ackerley, the worst bacteria in our homes are 'silent killers' that we cannot see or smell but that can multiply from a single bacterium to several million in just seven hours.
家蚕是蛋白质高效转化生物，具有周期短、繁殖率高、后代个体数多、能大量饲养等优点。
Silkworm, Bpmbyx mori, an organism which can transform protein efficiently, has the advantages of short life circle, high rate of reproduction and mass raising and so on.
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