Ellipsoidal tubesheet
[化] 椭球管板
🧩 词语组成解析
a. 椭圆体的
[化] 管板
🗣️ 情景例句
Don't be such a grouch.
不要总是牢骚满腹。
Never think yourself above business.
勿自视过高；不要眼高手低；永远不要认为自己是大才小用。
The instrument was bought by my grandfather many years ago.
是我祖父在很多年以前买的。