| 单词 | filter bed |
| 释义 | filter bednoun A tank or pond containing a layer of sand or gravel, used for filtering large quantities of liquid.When we arrived, we saw that the liquid was not passing through the sand, but was ponding on the surface of the filter bed....
|
| 随便看 |
|
英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。