墨水和纸张都是通过不同的化学过程制成的。
Both the ink and the paper were made by different chemical processes.
燃料电池是一种利用某种燃料（举例：氢）和氧化剂通过电化学过程产生电能的装置。
A fuel cell is a device that uses a source of fuel, such as hydrogen, and an oxidant to create electricity from an electrochemical process.
树叶通过光合作用这个化学过程制造食物，于是，树能得以存活和生长。
The leaves, through a chemical process called photosynthesis, make food so the tree can live and grow.
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