英语语法分析

And so, this was good as a refrigerant.

因此，这是一个好的制冷剂。

A refrigerant vaporises, absorbing heat from the air to be cooled.

制冷剂变为蒸汽，吸收空气中的热量。

This turns the refrigerant back into its cooler liquid state to be used again.

这又将制冷剂变回原先的较冷的液态，从而可以再利用。