n.正离子，阳离子

The positively charged sodium ion (Na+) is essential for nerve impulse transmission in our body.
阳离子钠（Na+）在我们体内对神经冲动传递至关重要。
Cations are attracted to the negatively charged cathode during electrolysis.
在电解过程中，阳离子被吸引到带负电的阴极上。
Calcium ions (Ca2+) play a crucial role in muscle contraction.
钙离子（Ca2+）在肌肉收缩中起着关键作用。
The cationic detergent removes dirt more effectively than anionic ones.
阳离子洗涤剂比阴离子洗涤剂更有效地清除污垢。
The presence of excess cations can cause water hardness, making it less suitable for drinking.
过多的阳离子会导致水硬度，使其不适合饮用。
In chemistry, cations often form ionic compounds with anions.
化学中，阳离子通常与阴离子形成离子化合物。
Cations can participate in redox reactions, transferring electrons to other species.
阳离子能参与氧化还原反应，向其他物质转移电子。
The cationic surfactant breaks the oil-water emulsion, facilitating its separation.
阳离子表面活性剂能瓦解油水乳浊液，促进其分离。
Soil pH affects the solubility and availability of cations like potassium and magnesium.
土壤pH影响钾和镁等阳离子的溶解度和可用性。
In electrochemistry, cations move from high concentration to low concentration through an electrolyte solution.
在电化学中，阳离子从高浓度区域移动到低浓度区域，通过电解质溶液。