Spirally coilayered cylinder
[化] 绕板式圆筒
🧩 词语组成解析
adv. 成螺旋形地
🗣️ 情景例句
How about going out for a bit to eat?
去吃点东西怎么样？
All right.
行。
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。