Elliptical tubesheet
[化] 椭圆管板
🧩 词语组成解析
[化] 管板
🗣️ 情景例句
I was faced with a new problem.
我面临了新的问题。
Could you explain how to fill this out?
请你说明一下怎样填这张表好吗？
In the letter he was asked to call at the station.
要他到警察局去一趟。