Production of high-analysis urea-based compound fertilizer by rotary steel-band chilling granulation method;
利用回转钢带冷凝成粒机生产高浓度尿基复合肥
Study on the palletizing process for the use of phosphorous gypsum as cement retarder;
磷石膏作水泥缓凝剂及其成粒工艺研究
