Mannitol
n. 甘露糖醇\\n[化] 甘露糖醇
🗣️ 情景例句
Have you had dinner yet?
你吃晚饭了吗？
I'm stuffed.
我快撑死了！
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。