waler

Method and technology that is fit for Liaoning agriculture waler saving was discussion in this paper, and forecast the tren...

本文重点探讨了适合辽宁省业的方式、技术,并业趋势,为辽宁省资源可持续利用、建设型社会提供参考。

The premonitor of gushing water and recognition of origin - water are expounded, and put forward the predictive melhod of gushing waler.

详细阐述了矿井征兆源的识别,提出了矿井的方法。