一个世纪前，亨利·卡文迪什注意到当空气中的氧气和氮气被除去，还有其他剩余气体存在，但人们还没有认识到它们的重要性。

A century earlier, Henry Cavendish had noted the existence of a residual gas when oxygen and nitrogen are removed from air, but its importance had not been realized.

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在内1783亨利·卡文迪什和詹姆士·瓦特都有助于认为水是一种化合物。

In 1783 Henry Cavendish and James Watt both contributed to the thought that water was a compound.

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