| |||
| balanced system; symmetrical system | |||
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| balanced system | |||
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symmetrisches System : 1 do fraz, 1 tematyki |
| Technika i technologia | 1 |
| |||
| balanced system; symmetrical system | |||
| |||
| balanced system | |||
|
symmetrisches System : 1 do fraz, 1 tematyki |
| Technika i technologia | 1 |