 |
| |||
| air conduction (Schallübertragung); air line (Rohr, Leitung) | |||
| air pipe | |||
| air pipe (pneumatics) | |||
| air conduction | |||
| air duct; trunking | |||
| air pipe (or line); air ducting; air channel; air tube | |||
| air conduit | |||
| Luftleitung: 5 phrases in 3 subjects |
| Construction | 3 |
| Health care | 1 |
| Refrigeration | 1 |