反滴定法 先加适量已知酸处理水样后用碱处理水样以麝香草酚蓝为指示剂是
The reverse titration method involves first treating the water sample with an appropriate amount of known acid and then treating the water sample with an alkali, using thymol blue as the indicator
以上为机器翻译结果，长、整句建议使用 人工翻译 。