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
Are you sure you are dialing the right number?
你确定你打的号码是对的吗？
Rowing builds up arm muscles.
划船能够锻炼臂力。
She got very angry and started shouting at me.
她气极了，冲我大喊。