Packed bed
[化] 填充层
🧩 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);
bed
[bɛd]
n. 床;苗圃;河床;（地下由黏土、岩石等构成的）地层;
vt. 把…固定在;（某人）发生性关系;给人铺床;
vi. 上床;分层;
🗣️ 情景例句
He has the advantage of a good education.
他有受过良好教育的优势。
It is better to please a fool than to anger him.
惹得傻瓜发火，不如使他快活。
Just pencil in the changes and we'll retype it.
修改的地方请用铅笔，我们会重打。