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| flight (trubky); passage (of bird, trubky); calibre (trubky); bore (trubky); clearance; clear opening; open space; opening; gap; chink; lumen | |||
| lightness (The quality of a color that makes it appear brighter (closer to white) or darker (closer to black)) | |||
| clear span; road clearance (vozidla) | |||
| pass (světlý průřez) | |||
| světlost: 5 phrases in 2 subjects |
| Agriculture | 1 |
| Construction | 4 |