That's a precipitation reaction, but this time it's happening in a mixture of gases, not liquids.

这是一个沉淀反应，但这次它发生在气体混合物中， 而不是液体中。

The partial pressure of a gas is the pressure contributed by a single gas in a mixture of gases.

气体分压是单一气体在混合气体中所产生的压力。

A central tenet here is Dalton's law, which states that the total pressure of a mixture of gases is due to the combined influence of the individual gases comprising the mixture.

这里的一个中心原则是道尔顿定律，它指出气体混合物的总压力是由构成该混合物的各个气体的综合影响引起的。