Its main work includes the Yellow River sediment cross-section tests, river bed surface quality sampling and particle size distribution analysis and so on. 其主要工作内容包括黄河河道断面淤积测验,河道表层河床质取样及颗粒级配分析等工作。
The improvement of cement particle distribution and heating intensity during clinker burning could also improve the performance of cement for pipe pile manufacturing. 改善水泥颗粒级配和提高煅烧热力强度均能改善管桩水泥的性能。