Hetu
abbr. Height Equivalent to Transfer Unit 当量传质单元高度
🗣️ 情景例句
What number do I dial?
我应该拨哪个号码呢？
Think it over!
好好考虑一下吧！
You can enlarge your knowledge and learn some English at the same time.
你可以扩大你的知识面，同时又学习了英语。