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1·The chemical formula of water is H₂O.

水的化学式是H₂O。youdao

2·H is the symbol for hydrogen in the periodic table.

在元素周期表中，H是氢的符号。youdao

3·Scientists are researching new ways to produce H more efficiently.

科学家们正在研究更高效地生产氢的新方法。youdao

4·The experiment involves the reaction of H with other elements.

该实验涉及氢与其他元素的反应。youdao

5·H plays an important role in many chemical processes.

氢在许多化学过程中起着重要作用。youdao

6·We need to understand the properties of H better.

我们需要更好地了解氢的性质。youdao

7·The energy source of the future might be based on H.

未来的能源可能基于氢。youdao

8·H can be used in fuel cells to generate electricity.

氢可用于燃料电池发电。youdao

9·The study focuses on the behavior of H under different conditions.

这项研究专注于氢在不同条件下的行为。youdao

10·H is one of the lightest elements in the universe.

氢是宇宙中最轻的元素之一。youdao