Spherical tubesheet
[化] 球形管板
🧩 词语组成解析
[化] 管板
🗣️ 情景例句
You'll have to ask a whole lot nicer than that I'm afraid.
恐怕你应该要问得有礼貌一点吧。
Waste not,want not.
俭以防匮。
The clouds had come down so suddenly we had no warning.
乌云突然出现，我们丝毫没有觉察。