Spud into wells, into 320-mm diameter stainless steel pipes, through certification water permeability soil sampling in the establishment of water treatment and water permeability better stratum.
英
美
- 开钻成井后,放入直径320毫米的不锈钢管,通过土壤取样验证透水性,在透水性较好的地层设置滤水管。