In fact, if you mix an acid and a base of equal strength, you will get a new liquid that is close to being neutral.
事实上，如果你将等量的酸碱混合，你会得到一种新的中性液体。
2
The properties of modified wool, wool and cashmere, as well as the dyeing rate of weak acid dye, neutral dye reactive dye to these fabrics were tested.