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pleine campagne | |||
période d'activité accrue | |||
période de pointe | |||
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périodes de pointe |
peak period : 23 phrases in 9 subjects |
Communications | 1 |
Cultural studies | 2 |
Electronics | 2 |
Entomology | 1 |
General | 6 |
Law | 3 |
Materials science | 1 |
Telecommunications | 1 |
Transport | 6 |