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
A little over two hours.
两个钟头多一点。
What is it you don't like about winter weather?
你不喜欢冬天什么样的天气？
Betty and Susan are talking on the telephone.
贝蒂和苏珊正在通电话。