再加上钙，镁起着牙齿和骨骼硬度不可或缺的作用。
Together with calcium, magnesium plays an integral role in tooth and bone hardness.
主要是由钙镁的硫酸盐、氯化物和硝酸盐等盐类所形成的硬度。
Is mainly composed of calcium magnesium sulfate, chloride and nitrate as the hardness of the form salts.
主要无机成分：钠，钾，氯，钙，镁，碱度，总硬度，总磷，氟化物，硫酸盐。
Major Inorganic Components: Sodium, potassium, chloride, calcium, magnesium, alkalinity, total hardness, total phosphorus, fluoride, sulphate.
应用推荐