Now, Western chemical firms are getting in on the action.
现在，西方化工企业也纷纷开始在中国建设煤化工厂。
The result is produced by chemical action.
这个结果是由化学作用而产生的。
Their tasting action is a chemical process, like smell.
他们的尝味作用，像嗅觉一样，是一种化学过程。
Oxide: Compound produced when an element has chemical action with oxygen.
氧化物：元素与氧作用而产生的化合物。
The purification of a substance by exposure to the mechanical or chemical action of air.
物质暴露于空气中，通过机械作用或化学反应使其纯化。
The purification of a substance by exposure to the mechanical or chemical action of air.
物质暴露于空气中，通过机械作用或化学反应使其纯化。
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