We know the constitution of mineral through chemical analysis.

我们通过化学分析知道矿物的构成。

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Through chemical reaction, hydrocarbons can be created.

通过化学反应，可以产生碳氢化合物。

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Polymerization toner which is prepared through chemical processing ensures high print quality compared with conventional toner which is prepared through mechanical grinding.

通过化学制品处理准备的聚化调色剂保证高印刷质量比较通过机械研准备的常规调色剂。

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Nicotine replacement products provide the body with small amounts of the chemical through forms other than cigarettes.

VOA: special.2010.03.09

The process calls for the chemical to be pushed through the small holes of a spinneret.

VOA: special.2011.03.01

They might sound like the stuff of science fiction, but at their most basic level these medical micro-robots are man-made protein "machines" that produce movement through chemical reactions.

CNN: Nanobots get to the heart of the matter

Unlike conventional cameras, our femto camera captures an image as one thin slice at a time of one-dimensional space using a "streak tube, " a laboratory instrument that is commonly used by chemists to study light passing through chemical samples.

CNN: A camera that can see around corners

But until recently, the only way to make lasers powerful enough to blow something tough into pieces was to use a chemical laser, which produces its energy through a chemical reaction.

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