standard time-frequency signal

standard time-frequency signal
стандартный частотно-временной сигнал (такой сигнал излучается рядом радиостанций США и других стран, в частности Национальным бюро стандартов США, причём передача осуществляется по расписанию на международных частотах)

Англо-русский словарь промышленной и научной лексики. 2014.

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