“single-tone keying”的概念、定义、翻译、参考文献-科学参考

单词	single-tone keying
释义	single-tone keying [`siŋ·gǝl ¦tōn `kē·iŋ] ^{COMMUNICATIONS} Form of keying in which the modulating function causes the carrier to be modulated with a single tone for one condition, which may be either marking or spacing, and the carrier is unmodulated for the other condition.
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