[an error occurred while processing this directive]
|
ÂÈÊÒÎÐÈÍÀ ÎÍËÀÉÍ
Âîïðîñ Òàê íàçûâàåòñÿ ïðîìåæóòî÷íàÿ îïîðà ìîñòà èëè ãèäðîòåõíè÷åñêîãî ñîîðóæåíèÿ.
Ñëó÷àéíûé âîïðîñ âèêòîðèíû îíëàéí:  êàêèõ ïîäøèïíèêàõ ïîòåðÿ ýíåðãèè íà òðåíèå ìåíüøå - ñêîëüæåíèÿ èëè êà÷åíèÿ?
[an error occurred while processing this directive]
Ãëàâíàÿ ñòðàíèöà | Áèáëèîòåêà | Ñòàòüè | Êàðòà ñàéòà | Îòçûâû î ñàéòå www.diagram.com.ua |