- cutoff wavelength
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верхняя критическая длина волны (в волноводе или световоде)
Англо-русский словарь технических терминов. 2005.
Англо-русский словарь технических терминов. 2005.
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длина волны отсечки — Наименьшая длина волны, на которой сигнал еще может распространяться в оптическом волокне (для основной поперечной моды световой волны). [Источник] Тематики оптические линии связи EN cutoff wavelength … Справочник технического переводчика