“marking and spacing intervals”的概念、定义、翻译、参考文献-科学参考

单词	marking and spacing intervals
释义	marking and spacing intervals [¦märk·iŋ ǝn ¦spās·iŋ `in·tǝr·vǝlz] ^{COMMUNICATIONS} Intervals of closed and open conditions in transmission circuits.
随便看	shipping ton ship report ship's clock ship's field error ship's head ship's lines ship synoptic code ship-tended acoustic relay ship-to-shore movement shipway shipworm shipwright shipyard shipyard eye shiran shivering SHM shoal shoal breccia shoaling shoal patches shoal reef shoal water shock shock absorber

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