the ice blocks up the river, making the upstream water unable to flow.
冰把河道堵住了,上游的水流不下来。
sustained drought and insatiable upstream water demand have drained lake mead to the point that experts are predicting it may soon be shallow enough to be in deep trouble.
持续的干旱和上流不断增加的水需求已经使米德湖快要陷入专家预测中可能造成麻烦的低点。
with the upstream water level reducing and the downstream water level increasing, the highest tangent velocity also moving to the pipe center.
随上游水位的降低及下游水位的升高,切向流速最大值点也不断向管中心一侧移动。
moreover, downstream factories and drinking water companies will benefit from the upstream water quality improvement measures, too and also from greater flood protection.
另外,下游地区工厂和饮用水公司也可能会从上游旨在提高水质量的措施和更大范围的防洪工作中受益。
this reduction of flow due to upstream water use represents just one of a number of key factors that have affected hong kongs rivers over time.
多年来香港河溪问题很多,而上游大量抽水导致河溪水流量减少只是其中的原因之一。
then, the influences of different upstream water levels on the joint opening, stress and displacement of dams are analyzed.
进而研究了库水位变化对横缝张开度、坝体应力和位移的影响。
reporters across the silver bridge to later see in the upstream water is indeed very clear.
记者在跨过银溪桥后见到,上游的水的确很清。
at the same time, by the upstream water level raising, the water area and wind wave of the reservoir have increased.
同时,枢纽上游水位的提升也增加了库区的水面宽度和水域面积,致使库区风浪规模扩大;
the bigger the downstream water level, the outstanding of variation degree of axial velocity along radius distribution when upstream water level is same.