 |
| |||
| portico | |||
| portal frame | |||
| bridge; crane bridge | |||
| crossbeam | |||
| portal support; "H" pole; "H" frame | |||
| gate | |||
| gateway | |||
| overhead sign gantry; gallow; arcade; arcaded sidewalk; straddle carrier; straddle truck | |||
| |||
| open frames | |||
| |||
| portal structure in electric traction | |||
|
portico : 110 do fraz, 13 tematyki |
| Budownictwo | 19 |
| Chemia | 2 |
| Elektronika | 7 |
| Fizyka jądrowa | 1 |
| Hutnictwo | 6 |
| Inżynieria mechaniczna | 19 |
| Kolejnictwo | 2 |
| Nauki przyrodnicze | 1 |
| Pospolicie | 3 |
| Przemysł | 1 |
| Rolnictwo | 1 |
| Technika i technologia | 2 |
| Transport | 46 |