Packed extration column
[化] 填充式萃取塔
?? 詞語組成解析
packed
[p?kt]
adj. 充滿…的;塞滿了…的;
v. 包裝(pack的過去式和過去分詞);
column
['kɑl?m]
n. 縱隊，列;圓柱;專欄;
??? 情景例句
My father is an engineer of a construction company, and mother is a doctor.
我父親是一家建筑公司的工程師，母親是一名醫生。
Don't be a stranger!
別這么見外嘛！
The harder you work, the richer you will become.
工作越努力，你就越富裕。