The results show that we can prepare a high quality of composite Portland cement which has high stre

中文解释

研究结果表明，将钢渣单独粉磨后与矿渣微粉复合掺入硅酸盐水泥，再适当地辅以掺加石膏和激发剂，可获得性能良好的具有较高强度的复合硅酸盐水泥。

正在查询

hypocycloid dismembers backspin Worship of animals. 耐心 materials handling straighten out an affair with effort dress smock ritualistic act