英语词汇“cement royal”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	cement royal
释义	> as lemmas cement royal hydraulic cements harden under water, and are used for piers, dock-walls, etc. Roman cement, like all the hydraulic cements, is an argillaceous lime. Portland cement is so called because it resembles in colour the Portland stone. It is prepared by calcining a mixture of the clayey mud of the Thames with a proper proportion of chalk (Ure). Also cement royal.extracted from cementn. < as lemmas
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英语词典包含1132095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。

> as lemmas