“single-frequency simplex”的概念、定义、翻译、参考文献-科学参考

单词	single-frequency simplex
释义	single-frequency simplex [`siŋ·gǝl `frē·kwǝn·sē `sim´pleks] ^{COMMUNICATIONS} Single-frequency carrier communications in which manual rather than automatic switching is used to change over from transmission to reception.
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