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
Where do you go to school?
你去哪里上学？
This country is localed on the continent of Africa.
这个国家位于非洲大陆。
Please sign here to show that you have received the money.
请在这儿签字以表明你已收到这笔钱。"