Basipetal formation
[医] 近心形成, 向底层形成, 向基形成
🧩 词语组成解析
a. 由上往下的
formation
[fɔ:'meiʃən]
n. 形成;构成，结构;形成物;编队，队形;
🗣️ 情景例句
Nice talking to you, sir.
我也很高兴与您交谈 ，先生。
He thanked them on your behalf.
他替你同他们致谢。
This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it.
因为如果有列火车开进隧道，它就把新鲜空气随之抽进了隧道。