under-water treatment

[医] 水下疗法(治脊髓灰质炎)

  • In coring drilling under-water cement grouting was often used for wall protection leakage blocking borehole sealing and downhole accident treatment .

    在岩心钻探中,常常要 用水 灌注水泥的方法来护壁、堵漏、封孔、 处理井故。