Elliptical tubesheet
[化] 椭圆管板
🧩 词语组成解析
[化] 管板
🗣️ 情景例句
Really, Mr. Marchetta?
真的吗，Marchetta先生？
A fall into the pit, a gain in your wit.
吃一堑，长一智。
It has been said that everyone lives by selling something.
据说每个人都靠出售某种东西来维持生活。