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écosystème d'eau courante; écosystème lotique |
channel system : 73 phrases in 13 subjects |
Agriculture | 4 |
Automatic control | 2 |
Communications | 28 |
Construction | 2 |
Earth sciences | 1 |
Electronics | 16 |
General | 1 |
Information technology | 8 |
Medical | 3 |
Metallurgy | 1 |
Telecommunications | 3 |
Transport | 2 |
United Nations | 2 |