| Chinese | English |
| 氢离子浓度负对数值 | pH-value |
| 离子 | ion An electrically charged atom or group of atoms formed by the loss or gain of one or more electrons (带电原子或因丧失或获得一个或多个电子形成的原子组。) |
| 离子交换 | ion exchange The process in which ions are exchanged between a solution and an insoluble solid, usually a resin (离子在溶液和不溶性固体间的交换过程，不溶性固体通常为一种合成树脂。) |
| 离子交换器 | ion exchanger A permanent insoluble material (usually a synthetic resin) which contains ions that will exchange reversibly with other ions in a surrounding solution. Both cation and anion exchangers are used in water conditioning. The volume of an ion exchanger is measured in cubic liters of exchanger after the exchanger bed has been backwashed and drained, and has settled into place (一种永久不溶性物质(通常是一种合成树脂)，其中包含可以与周围溶液中另外的离子进行可逆交换的离子。阳离子和阴离子交换均采用水环境。一个离子交换器的容积在其交换床被冲洗、沥干、放置后使用立方分米/公升度量。) |
| 阳离子 | cation A positively charged atom or group of atoms, or a radical which moves to the negative pole (cathode) during electrolysis (带正电荷的原子或者一组原子，或者在电解时趋向负极(到阴极)的原子团。) |
| 阴离子 | anion An ion that is negatively charged (带负电的离子。) |
