Chormometer
[机] 比色计
🗣️ 情景例句
I came to that conclusion.
我的结论也是这样。
Cindy's sister will be staying with her for a week.
辛迪的姐姐将要陪她一个星期。
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。