If you recall high school chemistry, pH measures the concentration of hydrogen in a solution.
如果你回忆下高中的化学实验，就知道PH值其实是衡量溶液里的氢原子浓度。
2
The net charge of emp with certain PH, temperature and protein concentration is proportional to the DH.
净电荷数在pH、温度和蛋白质浓度一定的条件下，随水解度的增加成正比例关系增大。
3
Results have shown that the lixivium concentration affected by leaching times, pH, leaching temperatures, and grain diameter values of the media and most parts of the hazardous element are stable.