Packed column
[化] 填充塔; 填充蒸馏塔
🧩 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
Hi, Dad. Am I interrupting you?
嗨，爸爸。我打搅了你吗？
No, it isn't. It's a bus.
不，那是一辆公共汽车。
To do this, he must be at least as knowledgeable as the dealer.
要做到这一点，他至少要像古董商一样懂行。