Packed density
[化] 填充密度
🧩 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);
🗣️ 情景例句
You've been very thoughtful.
你一直都很周到。
Thank you for a wonderful meal.
谢谢你的美餐。
As it is only six feet across, it is barely noticeable.
仅6英尺宽，很难被发现。