论文部分内容阅读
为了庆祝我国著名建筑材料专家,我国混凝土膨胀剂研究与应用技术领域的主要开拓者游宝坤教授70华诞及从事科研工作46周年,由膨
In order to celebrate China's famous experts in building materials, concrete expanders our country pioneer in the field of research and application of technology Professor You Baokun 70 anniversary and engaged in scientific research 46 anniversary, by the inflation