1·The water clock told the time by the water level in the bowls.
水钟是根据碗中的水位来报时的。
2·The surrounding basin is that of Red River, but because Devils lake's own basin is closed, the lake must reach a sufficient water level before the water travels elsewhere.
周围的属于红河的流域，但是由于魔鬼湖流域是封闭的内流区，必须使湖面水位达到足够的高度，水才能流到其他地方。
3·For instance, simple filtration and disinfection of water at the household level dramatically improves the microbial quality of water, and reduces the risk of diarrhoeal disease at low cost.
例如，在家庭层次水的简单过滤和消毒可显著改善水的微生物质量和以低成本减少腹泻病的危险。
4·In the water sector, water managers inherently have to deal with variability and uncertainty, but what's new is the increased level of uncertainty due to the changes in climate.
在水行业内部，水资源管理者本来就必须要应对水资源的变化和不稳定问题，但他们面临的新问题是气候变化导致的不稳定性增加问题。
5·Infinity pools are designed to make it seem as though the water extends to the horizon. In reality, the edge of the pool is usually about an inch below the water level.
泳池的特殊设计让水体看起来如同延伸至视野的边际，但实际上，泳池的边缘被设计成在水平面之下的几厘米处，溢出的水会流到下方的一个集水池中，再被泵回泳池内。
6·45 min the water level in the primary loop continues to drop. Gauges in the control room erroneously indicate that the water level is up.
45分钟主回路的水位继续下降。控制室中的仪表误报水位在上升。
7·At the global level, there is enough water available, but some countries and regions will face serious water shortages.
在全球范围水是充足的，但是有些国家和地区将面临严重的缺水。
8·Never let the water level fall below the base of the tree or the cut end may seal over, preventing further water intake.
不要让水位降到树基以下，或者树干截面以下，否则截面干涸以后，松树就无法充足的吸收水分了。
9·Nevada has the lowest level of water pollution in the country because the generally arid state has very little fresh water to dump toxins into.
因为干旱，该州没有淡水来排放有毒物质的缘故，内华达州是美国水污染最轻的。
10·The Balkhash lake, he said, was “losing water.” “The water level is now lower by more than two metres to what it was three decades ago.
他说，巴尔喀什湖正在“失水” “现在的水位比三十年前低了两米多。