The U.S. bacterial limit is no more than 500 colony-forming units of bacteria per milliliter of water.

美国的细菌数量上限是每毫升水不超过500个菌落形成单位。

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The U.S. bacterial limit is no more than 500 colony-forming units of bacteria per millilitre of water.

美国的细菌限制标准是 毫升 的水中不含有超过500菌落的细菌。

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The U. S. bacterial limit is no more than 500 colony-forming units of bacteria per millilitre of water.

美国的细菌限制标准是毫升的水中不含有超过500菌落的细菌。

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Zeneca ordered a "wet" copy of a promising gene, in the form of a clone -- a colony of bacterial cells whose members all carry the desired snippet of DNA. These bacterial guinea pigs can then be used to try out antibacterial chemicals.

FORBES: Biology in silico

The winner, however, was Steve Meretzky, developer of Zoo Tycoon, whose concept game Bac Attack pits players armed with light and radiation against a bacterial colony in a petri dish -- when the player is inevitably overwhelmed by the bacteria, Steve suggests calling the government to arrange a sale.

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