The same applies to phase-in substances that have not been pre-registered.

阶段性纯化学物质在提交同样的申请之前不需进行预注册。

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Now if we look at Raoult's law, it's straightforward to say what is the chemical potential for each of the substances in the liquid and the gas phase. Of course, it has to be equal.

如果我看看拉乌尔定律，很直接地就知道，液体和气体中，每一种物质的化学势，当然，它们必须相等。

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"The key point is there's now a certain momentum in industry to phase out problematic substances, and we should encourage that momentum," he said.

“关键的一点是现在有种趋势在工业领域逐步淘汰有问题的物质，而我们应当鼓励这一趋势，”他说。

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