Polyallylmethacrylate
[化] 聚甲基丙烯酸烯丙酯
🗣️ 情景例句
That's important for us.
这对我们很重要。
The brave man hazards his life, but not his conscience.
英雄的人可以冒生命危险，但不冒良心危险。
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。