截至今年4月末,北京市水泥企业累计散装水泥供应量达到了132.1万吨,完成计划的26.46%,发散率预计超50%,散装水泥累计供应量超过去......

高淳县农村散装水泥推广使用工作,在县委、县政府的关心和支持下,因地制宜,大胆探索,扎实苦干,经过近几年的努力,形成了市场化的产......

作为宁夏区水泥生产的龙头企业,“十五”期间我公司按照国家发展散装水泥的政策精神,把扩大散装水泥的生产、销售作为一项重要工作......

The concentrations of 20 trace elements in several ceramics tiles and ceramic composites used in Egypt were elementally ......

<正>It was derived that micro-scale amount level of average pore radius of clay changed from 0.01 to 0.1 micron by an eq......

<正>By using a continuous transition method of a matrix and the estimate for spectral radius of a sub-matrix etc.,decisi......