|
|
| abbr. |
American Public Power Administration; American Paper and Pulp Association |
| abbr., avia. |
advise present position and altitude; Association des Pilotes Prives Avions |
| abbr., comp., net. |
application accelerator |
| abbr., earth.sc. |
African Petroleum Productions， Association |
| abbr., electr.eng. |
American Public Power Association |
| abbr., med. |
American Psychopathological Association; 4-aminophenylacetic acid; American Professional Practice Association; 4-aminophenylacetic Acid |
| abbr., mil., avia. |
advise present position and altitude |
| abbr., O&G |
African Petroleum Producers Association (kotechek) |
| abbr., oil |
American Power Plant Association |
