Packed extration column
[化] 填充式萃取塔
🧩 词语组成解析
packed
[pækt]
adj. 充满…的;塞满了…的;
v. 包装(pack的过去式和过去分词);
column
['kɑləm]
n. 纵队，列;圆柱;专栏;
🗣️ 情景例句
He is tough in doing everything.
他不管做什么事都很有毅力。
I don't think you'll have any difficulty in pushing sales.
我认为你推销时不会有任何困难。
They will arrive in half an hour.
他们将于半小时之内到达。