Slow, careful curing of the concrete improves the hydration of the cement.混凝土的缓慢而精心的养护可以改善水泥的水化作用.ZL and lignosulphonate calcium don't harm the strength development of granular soil stabilized with cement.ZL和木钙两种缓凝剂...
The gym teachers lined us up against the cement walls.体育老师让我们靠着水泥墙排好。A puppy stepped in the fresh cement.一只小狗踩在刚抹好的水泥面上。The earth-moving trucks and cement mixers lay idle.运土卡车和混凝土搅拌机闲置着。...