Other prototypes use potassium hydroxide, water and heat energy to go through a series of chemical reactions that eventually release CO2 out of the air, but all of these processes require extra energy and heat in order to work.

其他原型使用氢化钾、水和能进行一系列化学反应，最终从空气中释化碳，但所有这些过程都需要额外的能量和量才能工作。

Did he obtain air using chemical methods, releasing the oxygen contained in potassium chlorate by heating it, meanwhile absorbing the carbon dioxide with potassium hydroxide?

他是用化学方法获得空气的吗？是用氯酸钾出气，还是用氢化钾吸收化碳气呢？

As well as strong bases, like sodium and potassium hydroxide.

以及强碱，如氢化钠和氢化钾。

So the potash that Davy was using was actually potassium hydroxide.

因此戴维使用的钾实际上是氢化钾。

They use a chemical called potassium hydroxide to help make power.

它们利用一种名为氢化钾的化学物质来辅助产生电力。

The water and hydroxide ions, by the way, come from a solution of potassium hydroxide.

顺便说一句， 水和氢根离子来自氢化钾溶液。

Potassium reacts with water, forming potassium hydroxide and hydrogen gas.

钾与水发生反应， 生成氢化钾和氢气。