| |||
| pre-treatment | |||
| preparation; dressing; preconditioning | |||
| pretreatment; preliminary treatment | |||
| preprocessing; front-end processing | |||
|
traitement prealable : 9 phrases in 7 subjects |
| Chemistry | 1 |
| Communications | 1 |
| General | 2 |
| Materials science | 1 |
| Metallurgy | 1 |
| Technology | 2 |
| Transport | 1 |