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
Come on.
来吧。
We never know the worth of water till the well is dry.
井干方知水可贵。
Excuse me. Is there a police-station near here?
请问，附近有警察局吗？