carefreeyu
strong alkaline + 名 base和alkali的区别应该在于前者是化学意义上的,后者是金属碱,PH试纸也是以氢铁来量度的嘛. 我不是学化学的,说错了别怪.
海螺拍客
pH=potential of hydrogen) A measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly in use ranges from 0 to 14.酸碱度：溶液酸性或碱性的度量，数值等于7的为中性溶液，数值增大表示碱性增大，数值减小表示酸性的增大。PH值范围一般在0到14之间
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