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
That's all right. We don't go to bed early.
那没关系。我们不会睡得太早。
Please do not touch the wet paint.
油漆未干，请勿触摸。
It was beginning to get dark. I think we'd best stay the night here, I said.
天开始变黑。“我看我们最好在这里过夜，”我说，