您要查找的是不是：
- pH均值pH average value
- 均值typical value
- 船用ph值shipboard PH meter
- 低pHlow pH
- PH-20PH-20
- K均值K-means
- C均值C-Mean
- ph复合电极pH electrode assembly
- ph.1. 嘲弄take the mickey
- 零渐近均值zero asymptotic mean value
- 真均值true average value
- 尿pH值Urinary pH
- V-pH图V - pH diagram
- 月均值month
- 反均值antiaverage number
- 混凝pHcoagulation pH
- pH测量determination of pH
- 参数均值mean parameter
- 组均值class mean
- pc-pH图diagram of pc-pH
