许多人试图通过减少灌溉频率或改种需水量更少的作物来节约用水。
Many have been attempting to conserve water by irrigating less frequently or by switching to crops that require less water.
研究人员通过一个计算机模型计算出了水分胁迫情况，该模型将之与树木所需水分进行比较，计算出树木实际获得的水分。
The researchers figured out water stress with a computer model that calculated how much water trees were getting in comparison with how much they needed.
高温天气会使需水量成倍增加。
Very hot temperatures can double the amount of water needed.
湿拌时要求一次加足所需水量；
翂高温天气会使需水量成倍增加。
Very hot temperatures can double the amount of water needed.
我们急需水和食物。
试验表明：大豆是需水较多的作物。
儿童、哺乳期妇女、病人需水量更大。
一般来说，食物能够提供每天需水量的20%左右。
On average, food provides about 20 percent of total water intake.
一般来说，食物能够提供每天需水量的20%左右。
On average food provides about 20 percent of total water intake.
翂儿童、哺乳期妇女、病人需水量更大。
目前，有250万人急需水、食物、住处和医疗援助。
Now 2.5 million people are in urgent need of water, food, shelter and medical assistance.
作物系数是计算作物需水量必不可少的参数。
Crop coefficient is the basic parameter for determining crop water requirement.
他们现在极需水喝。
种植耐旱的，需水量远远少于其它植物的树木花草。
Plant drought-tolerant shrubs, trees, and grasses, which require far less water
还做了敏感性研究以找出需水量与水化作用的关系。
Sensitivity studies are also performed showing the relationships between water content and hydration.
生态环境需水量是当前水资源管理等学科研究的重点和难点。
Study on the ecology water requirement is the emphasis and difficulty for current water resources management.
水资源的供需分析，仅反映各区的水资源供需水量及缺水情况。
The supply-demand analysis of water resources can only reflect the amount of water supply and demand.
就像是眼药水的用量因人而异一样，每个人的需水量也是不同的。
Like an eyeglass prescription, everyone's fluid needs are different.
原油交易商也将关注欧佩克和国际能源机构月报以衡量全球供需水平。
Oil traders will also keep an eye out for monthly reports from the Organization of Petroleum Exporting Counties and the International Energy Agency to gauge global supply and demand levels.
某些国家中生产一公斤小麦需水1,500升，而另一些地方只需750升。
In some countries, you need 1, 500 litres of water to produce a kilo of wheat; in others, only 750 litres.
基地水文评估包括调查土壤、水生生物需水深度、湿地植物群落等其它方面。
Site hydrology assessment includes investigations into other areas like soils, depth requirements for aquatic organisms, wetland plant communities, etc.
分析了现有作物需水量测定方法与计算方法在我国应用于灌溉预报时的局限性。
The present measuring and computing methods of crop water requirements have some limitations when they applied to irrigation prediction in China.
客户可根据各自的情况酌情处理，朱顶红种植后前期生长需水不多，不宜多浇水。
Customers according to their circumstances discretion, Hippeastrum early growth after planting need much water, not more water.
花园里的植物需水量极小，却能保持屋顶比黑瓦房顶阴凉，同时吸收大量的二氧化碳。
It is made of plants that require minimal watering, keep the roof cooler than black roof tiles and absorb lots of carbon dioxide.
尽管每个人每天的需水量不同，专家建议每天喝8杯水(约合64盎司)比较合适。
While each person's hydration needs are different, experts generally suggest 64 ounces or 8 glasses of water a day.
尽管每个人每天的需水量不同，专家建议每天喝8杯水(约合64盎司)比较合适。
While each person's hydration needs are different, experts generally suggest 64 ounces or 8 glasses of water a day.
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