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| |||
| pre-treatment | |||
| pretreatment; preliminary treatment | |||
| preprocessing; front-end processing | |||
| preparation; dressing; preconditioning | |||
|
traitement prealable : 9 phrases, 7 sujets |
| Chimie | 1 |
| Communications | 1 |
| Général | 2 |
| Métallurgie | 1 |
| Science des matériaux | 1 |
| Technologie | 2 |
| Transport | 1 |