Through a great number of Pu-Nan experiment datas, the pater put forward to the mixture design method, requirement of aggregate, gradation of mixture for dense graded aggregate base.
本文结合浦南路实测资料，提出了多雨潮湿地区级配碎石的设计指标、材料技术要求、级配范围要求。
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The theories of management and being good at management can correct 'the deficiency of new public administration in such aspects as scientific base, value choice, the relation between pu...
Waterborne polyurethane (PU) flame retarding gum (I) was synthesized with a special technology by use of waterborne PU as the base material and the added flame-retardants and auxiliary agents.