Hetu
abbr. Height Equivalent to Transfer Unit 当量传质单元高度
🗣️ 情景例句
Frank, you can learn as we go.
Frank，我们玩， 你跟着学。
Few words,many deeds.
少说话，多做事。
but Captain Fawcett did not take him because the trip was too dangerous.
弗西特机长之所以不送他去，是因为那段飞行太危险了。