来自大英百科
“The most familiar electrolytes are acids, bases, and salts (salt), which ionize when dissolved in such solvents as water or alcohol. Many salts, such as sodium chloride, behave as electrolytes when melted in the absence of any solvent.”
来自潇湘晨报
“钟凯指出，电解质水的适用范围是那些因高烧大量流汗，或短时间内反复呕吐、腹泻的人群，这些人群由于电解质流失太快，需要补充一些电解质来达到机体的平衡，而普通轻症的阳性感染者，达不到需要额外补充电解质的程度。”
来自Vocabulary的例句
Crandall says, “Sweat is basically water, sodium chloride, and potassium”—all of which you have to replenish after sweating heavily, he says. Time(Jul 08, 2015)
综合三者，大量出汗、呕吐、腹泻出现时，需要补充水、电解质（盐、酸或者碱）、钾。