In a study published this year in the journal Science Advances, researchers used a DAC to combine water and liquid methane, or one carbon bonded to four hydrogens.

在今年《科学进展》发表的一项研究中，科学家用DAC将水与液态甲烷或四氢化碳溶合。

It's a way of combining water, a mountain, and gravity into a battery and it can be about 90% efficient meaning only 10% of this energy is lost in the process.

这是一种将水、山和重力结合到电池中的方法，它的效率可以达到 90% 左右，这意味着在这个过程中只有 10% 的能量损失。