Benedict's solution
[医] 本尼迪特氏溶液(易于还原的铜盐溶液,检糖)
🧩 词语组成解析
🗣️ 情景例句
and some brushes and some paint.
刷子和油漆。
Measures should be taken to reinforce the cartons.
应采取措施加固纸箱。
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。