Improving regulation is a tortuous process, as new chemical rules show.

新的化学物品条例表明，完善管控过程曲折复杂。

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"We did find two or three microorganisms that produced some new chemical compounds," Cano says.

“我们找到了两到三种微生物，可以用他们制作一些新的化合物”，卡诺说。

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The Experiment: Test each new chemical on a wide range of human volunteers before it comes on the market.

试验：所有新化学品进入市场之前在大规模志愿者身上进行试验。

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So recently we also set up a meeting with the new director of undergraduate studies in chemical engineering and

最近我们还和化学工程本科部的新主任开了一次会，

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And there will be new chemical technology coming to improve GTL in due course.

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How do you know how your genes will behave when confronted with a strange new chemical?

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But Holliday says the investment is more akin to developing software than building a new chemical plant.

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