| 单词 | tr |
| 释义 | > as lemmasTR TR n. Electronics transmit-receive; usually attributive. ΘΚΠ society > communication > telecommunication > [adjective] > transmit-receive TR1945 1945 Electronic Industries Sept. 226 T R switch, transmit-receive switch. A switch which prevents the transmitted energy from getting to the receiver, but allows the received energy, which is much weaker, to reach the receiver without appreciable loss. This is necessary when the same antenna is used for both transmission and reception. 1975 D. G. Fink Electronics Engineers' Handbk. ix. 23 Such limiters are replacing TR gas discharge tubes in radar. < as lemmas |
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