They have only a vague idea of the amount of water available.
他们对于可用水量只有一点模糊的了解。
Groundwater is the word used to describe water that saturates the ground, filling all the available spaces.
地下水这个词描述的是水浸透土地，并填充所有可利用的空间。
Early life-forms on Earth were confined to the oceans because water was the only available protection they had against ultraviolet radiation.
地球上早期的生命形式被限制在海洋里，因为水是帮助它们抵御紫外线辐射的唯一有效保护。
Some areas, because of their soil texture, topographical position, or distance from rivers or groundwater, have virtually no water available to plants, whereas others do.
有些地区由于土质、地形位置或与河流或地下水的距离，几乎没有水分能提供给植物，而另一些地区则有。
Since water is much cheaper than wine, and many of the fancier brands aren't available in stores, most diners don't notice or care.
但由于水比酒便宜得多，而且许多高档品牌的酒在商店里都买不到，大多数用餐者都不会注意，也不在意。
But since water is much cheaper than wine, and many of the fancier brands aren't available in stores, most diners don't notice or care.
但由于水比酒便宜得多，而且许多高档品牌的酒在商店里都买不到，大多数用餐者都不会注意或在意。
Water and electric hook-ups are available and facilities are good.
水和电都可以接通，设施也很不错。
Yet there is a dark side to this picture: despite our progress, half of the world's population still suffers, with water services inferior to those available to the ancient Greeks and Romans.
然而，这种情况也有其黑暗的一面：尽管我们取得了进步，世界上仍有一半的人口在受苦，供水服务还不如古希腊和古罗马人。
The report predicts population growth and climate change could cut available water in half by 2050.
报告预测，到2050年，人口增长与气候变化可能会使可用水资源减少一半。
But the water available here cannot meet the needs of all.
但是这里可供使用的水并不能满足所有人的需要。
That's in stark contrast to other areas of the world, such as Latin America, the Caribbean and Sub-Saharan Africa, which use only about 2 percent of available water in their regions.
这与其它地区形成了鲜明的对比，如拉丁美洲、加勒比地区和南撒哈拉非洲地区。在这些地区，只有大约2%的可用水得到了利用。
In Gaza, where Palestinians rely on an aquifer that has become increasingly saline and polluted, the situation is worse. Only 5%-10% of the available water is clean enough to drink.
加沙的情况更加严重，那里的巴勒斯坦人依赖一个含水层，这个含水层已经受到污染，其中的水越来越苦涩，可以得到的水只有5% - 10%的可以饮用。
More use of conservation tillage can assure that available water reaches the plants in drought-prone, rainfed areas.
如果更多地采用保墒耕作方式，可以保证可用水资源为干旱频发和雨浇地区的农作物所用。
When the cooling system failed at Japan's Fukushima Dai-Ichi reactor Number 2, the fuel rods boiled through the available water and were for a period of hours exposed to the air.
日本福岛二号核反应堆冷却系统破坏后，核燃料棒将可用的水煮沸，并露出水面数小时。
Less available water affects hygiene.
可用水资源的减少会对卫生状况产生影响。
Mercer says a lack of available cooling water could cripple such schemes.
默瑟说，缺少可用的冷却水使得这项方案无从谈起。
Because the available water is spread among more particles, the cloud droplets that form in the ships' wakes are smaller than typical Marine layer cloud droplets.
由于这些水分分散在更多的颗粒中，在船舶航迹中形成的云滴比典型的海洋层云滴要来的小。
In both cases, the treated water is also available for tasting at local water-recycling facilities.
在这两个地方，均可在当地的再生水设施上接到饮用水。
The ratio of net radiation over rainfall for a given period of time is a measure of excess energy relative to available water and is therefore a measure of drought hazard.
根据一定时间间隔的净辐射与降雨量的比可以用来衡量相对于可利用水分的剩余能量，因此该比值也是干旱灾害的度量。
It is known to us all that water is the source of life. And the available water resources on the earth are quite limited.
众所周知，谁是生命之源。而且地球上可利用的水资源是有限的。
The integrated assessment method of available water amount according to target water quality of water functional zone is introduced.
首先介绍满足流域水功能区水质目标的可用水资源量联合评价方法。
This was determined by the low available resource, especially low available water and temperature.
这是由于低的有效资源，特别是低的有效水分与温度决定的。
The area of a basin may be limited by elevation changes, by the size that can be covered uniformly by the available water supply on permeable soils, or by cropping factors.
格田面积受限于地面高度的变化、现有水量均匀覆盖于渗透性土壤的面积大小及耕作因素。
But there is a very limited available water resource in our world.
但是有一个非常有限的可用水资源在我们的世界。
Soil available water capacity (AWC) plays an important role in the evaluation of drought resistance of soil, planning and managing water resources and conducting irrigation.
土壤有效含水量（AWC）是评价土壤抗旱性、水资源规划和管理以及指导灌溉的重要依据。
Nationwide, China's available water supply per person is one-fourth the world average.
中国全国的人均可用水供应量仅为世界平均水平的四分之一。
Available water resource is getting more and more scarce under global change, while groundwater is being intensive used.
全球变化条件下可利用水资源日益贫乏，地下水利用强度在不断增大。
Because soil evaporation was reduced obviously in the earlier stage of crop growth, available water was increased during flourishing stage of crops. So water use efficiency was increased.
农田秸秆覆盖后作物苗期棵间土壤蒸发明显减少，使旺盛生长期可利用水分增加，提高了水分的利用率。
In soil-plant-atmosphere system, soil available water content, crop water consumption, and effective precipitation are the main factors in water balance equation of farmland.
在土壤-植物-大气系统中，土壤有效水分贮存量、作物耗水量和有效降水量是农田水分平衡的主要组成因子。
In soil-plant-atmosphere system, soil available water content, crop water consumption, and effective precipitation are the main factors in water balance equation of farmland.
在土壤-植物-大气系统中，土壤有效水分贮存量、作物耗水量和有效降水量是农田水分平衡的主要组成因子。
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