Jackson said the EPA will now instruct its local offices not to approve new valley-fill permits that are likely to produce a certain level of pollution in waters downstream.
杰克逊认为环保署将会指导当地部门不再批准有可能会污染水源的采矿申请。
When valve is filled, open the downstream shutoff slowly and fill the water supply system.
阀门注满后，慢慢开启下游关闭阀对水供应系统注水。
Abstract: Flood water resulted from break of natural rock-fill dam threatens the safety of downstream seriously.
文摘：天然堆石坝溃决洪水，严重威胁下游的安全。
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