pH
| pH | |
| chem. | pH; potentiel hydrogène |
| |||
| pH m; potentiel hydrogène | |||
| pH acidité réelle | |||
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pH : 26 phrases in 7 subjects |
| Agriculture | 2 |
| Chemistry | 4 |
| Communications | 3 |
| Earth sciences | 2 |
| Electronics | 1 |
| Environment | 11 |
| Life sciences | 3 |