roman cement meaning in English
罗马水泥
天然水泥
Examples
- The romans discovered that a mixture of quicklime , volcanic ash and aggregate would harden under water - the roman cement or hydraulic lime was born
生石灰,火山岩灰烬和其它混合物在水的作用下会变硬的特性由此罗马水泥或水化石灰就诞生了。
罗马水泥
天然水泥