Catalyst-packed column
[建] 催化剂填充塔
🧩 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
Certainly.
当然可以。
Thanks a lot.
多谢。
Here's another photo of Lily. Look! She's swimming very well.
这儿有莉莉的另一张照片。看！她正在游泳，游得非常好。