| 单词 | Portland cement |
| 释义 | Word Frequency Portland cementnoun a cement that hardens under water and is made by heating a slurry of clay and crushed chalk or limestone to clinker in a kiln Word origin C19: named after the Isle of Portland, because its colour resembles that of the stone quarried there |
| 随便看 |
英语词典包含233703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。