Fractometer
[化]色层分离仪
🗣️ 情景例句
Thanks so much.
非常感谢。
It's foggy this afternoon.
今天下午雾很大。
The city was equipped with a drainage system, for a great many clay pipes were found beneath the narrow streets.
城里甚至还敷设了排水系统，因为在狭窄的街道底下发现了许许多多陶土制作的排水管道。