Packed reaction column
[化] 填充反应柱
🧩 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
Hello, May I speak to Miss Li, please?
喂。我可以请李小姐接电话吗？
They teach you English in an intensive course lasting just a week.
他们用一周的时间教速成英语课程。
Do you have any suggestions.
你说怎么办？