cement-water ratio
英
美
- cement n.水泥;纽带;接合剂;牙骨质;补牙物;基石vt.用水泥涂;巩固vi.接合起来
- ratio n.比率;比例
- water n.水;海域;雨水;海水v.给...浇水;给...供水;加水稀释;充满眼泪;给...水喝
- Salt water has more buoyance than fresh water.
咸水比淡水浮力大。
- The water pumped from wells is much cleaner than that pumped from rivers.
从井里抽出来的水比从河里抽上来的水清洁得多。