"Dongshan Stone Pit and Baolu Stone Pit got out of line in sandwashing and the water emission, " Zhang added.
他们已经对这两家碎石场进行了查处，“东山和宝璐两家碎石场都存在违规洗砂和直排洗砂水的行为。”
2
Sandwashing in horizontal Wells requires that the sand are carried out of surface without new damage on pay zones. This requires the reasonable flow rate and pressure in horizontal Wells.