大规模抽水 meaning in English

large-scale pumping

To obtain hydraulic conductivity （ hc ） is the basis to forecast water - gushing and hc can not be determined by pumping test on a large scale for tunnels with superthick overburden
围岩渗透性是涌水预测的基础，对于超深隧道，不能通过大规模抽水试验来获得渗透性参数。
To meet the peaking need of the grid and improve the source structure of the system , it is necessary to construct the mass pumped storage power station . and more high pressure tunnels will be constructed
大规模抽水蓄能电站的建设是现代电网的必然产物，它在电力系统中起调峰填谷作用，提高电网运行的灵活性和可靠性；相应高水头大直径水工压力隧洞的建设也逐渐增多。