Ëåíòà áîðäþðíàÿ îò áåëîðóññêîãî ïðîèçâîäèòåëÿ
02.05.2024
Âîëíà ïðÿìàÿ (ïàäàþùàÿ) ýëåêòðîìàãíèòíàÿ (àíãë. The direct (incident) electromagnetic wave ) Ýëåêòðîìàãíèòíàÿ âîëíà, ðàñïðîñòðàíÿþùàÿñÿ â ïðîñòðàíñòâå, â ëèíèè èëè â âîëíîâîäå â íàïðàâëåíèè, ïðèíÿòîì â ñèñòåìå îòñ÷åòà çà ïîëîæèòåëüíîå íàïðàâëåíèå.