| 单词 | pulse recurrence frequency |
| 释义 | > as lemmaspulse recurrence frequency pulse recurrence frequency n. ΚΠ 1937 Philos. Trans. (Royal Soc.) A. 236 205 The time scale on the oscillograph screen at the receiver and the pulse recurrence frequency at the sender were separately controlled. 1991 New Scientist 31 Aug. 52/3 The frequency range used is 3 to 30 megahertz; the pulse recurrence frequencies range from a few hertz to several tens of hertz. < as lemmas |
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