| |||
| blinding; crud; blockage of the filter; choking; clogging | |||
| soiling | |||
| dirt; pollution | |||
| gumming | |||
| chocking-up; clinkering | |||
| coking | |||
| fouling | |||
| loading | |||
| dirtying | |||
| |||
| pick-up; electrode pick-up | |||
|
encrassement : 18 phrases in 8 subjects |
| Chemistry | 3 |
| Coal | 1 |
| Environment | 1 |
| General | 3 |
| Mechanic engineering | 4 |
| Metallurgy | 4 |
| Sound recording | 1 |
| Transport | 1 |