英语语法分析

But another way to keep food fresh is to use an evaporative cooler.

另一种保持食物新鲜的方法是使用蒸发冷却器。

But another way to keep food cool without the need for electricity is to use an evaporative cooler.

但另一种无需电力即可冷藏食物的方法是使用蒸发式冷却盒。

We use a patented evaporative cooling technique whereby water is injected straight into the fuel cell stack, he said.

我们采用一项蒸发冷却专利技术，该技术直接将水注入到燃料电池内部。