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| Subject | English | Norwegian Bokmål |
| environ. | aircraft engine emission The formation and discharge of gaseous and particulate pollutants into the environment, especially the stratosphere, chiefly from airplanes, helicopters and other high-altitude aircrafts | utslipp fra fly |
| environ. | aircraft noise Effective sound output of the various sources of noise associated with aircraft operation, such as propeller and engine exhaust, jet noise, and sonic boom | flystøy |
| pwr.lines. | aircraft warning marker for conductor and earth wire | flymarkør |