Aci
[计] 车辆自动识别
🗣️ 情景例句
Sheet--s-h-e-e-t.
Sheet s-h-e-e-t。
To blow smoke rings
喷出烟圈
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。