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free air
| ionisation chamber
| free air | |
| agric. tech. | air libre |
| commun. | champ libre |
| environ. | air du dehors; grand air |
| ionisation chamber | |
| earth.sc. tech. | chambre d'ionisation; chambrion |
| |||
| air libre | |||
| champ libre | |||
| air du dehors; grand air | |||
| air d'ambiance | |||
| free air: 68 phrases in 20 subjects |