Seawater has a high concentration of ions, much like the battery's electrolyte.

海水包含高浓度的离子，非常类似于电池的电解液。

youdao

The device works by measuring the concentration of ions - tiny charged particles - as they enter and exit cells.

该设备可以在带电离子出入细胞时测量出它们的密集程度。

youdao

When carbon dioxide dissolves in seawater, the concentration of hydrogen ions increases, making it more acidic.

当二氧化碳在海水中溶解，氢离子浓度会增加，使海水变得更酸。

youdao

So by building up the concentration of ammonium ions inside its retaining membrane, H. pylori is able to fend off the destructive attentions of the hydrogen ions in stomach acid and thus live free from competition by less hardy germs.

ECONOMIST: Stomach turning | The