单词：Portland cement
England, made by calcining an artificial mixture of carbonate of lime
and clay, or sometimes certain natural limestones or chalky clays. It
contains a large proportion of clay, and hardens under water.
Portland cement的用法和样例：
例句
- The Binder usually used today is portland cement.现在使用较多的是普通水泥。
- The paper introduces the principle and way of making the cement,and also analyzes the feasibitity to make building mortars instead of ordinary cement.本文介绍该水泥的配制原理与方法，分析了代替普通水泥配制建筑砂浆的可行性。
- The effect of sulphoaluminate cement on the performance of Portland cement was studied.研究了硫铝酸盐水泥熟料对复合硅酸盐水泥性能的影响。
- The experimental results show that the physical mechanical performance of the cement is similar to that of ordinary portland cement.结果表明，该品种水泥的物理力学性能与普通硅酸盐水泥相似。
- hydraulic cement水凝水泥
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