Bed density
[化] 床层密度
🧩 词语组成解析
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
Are you ready for a lifetime commitment?
你准备以身相许了吗？
None so deaf as those that won't hear.
置若罔闻。
Modern industry is based on the conception of the maximum production at lowest cost,
以最低成本获取最多产品，