Dccs
[计]= Defense Communications Control System,防务通信控制系统
🗣️ 情景例句
the dog is just fine.
那只狗会很好的。
He emerged as leader at the age of thirty.
他在30岁时出人头地成为领袖。
This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second.
这种通讯联系要靠21厘米波段，即每秒1420兆周的精确无线电频率。