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
Save your voices.
留着点嗓子。
Don't put off till tomorrow what should be done today.
今日事，今日毕。
What was the order number?
订单号码多少？