改进后的皮碗式封堵技术经济效益和社会效益显著。
The improved sealing cup-type plugging technology has remarkable social benefit and economic benefit.
实践证明，该装置经济效益和社会效益显著，具有良好的推广应用前景。
It has been proved by the practice that this device should fit the economic and social benefits remarkably and have good prospect of popularizing and...
处理后的溢流水作为洗煤用水循环使用，节省水力资源，减少了环境污染，经济效益和社会效益显著。
The spill water handled can be used as slime water in rotation, saving the water resource, reducing the pollution and improving the economic and social benefit remarkably.
应用推荐