The application of the polyurethane elastomeric products is reviewed, and the prospect for this macro-molecule material with excellent properties is made in this paper.
综述了聚氨酯弹性体在矿业中的应用现状，并对这种性能优异的高分子材料的前景作了展望。
2
Now the study of MBR focuses on macro parameter control and system running effected by sludge characteristics, and there are little studies on molecule ecology of active sludge.