安徽淮北平原宜井灌溉面积占总耕地面积近80%。
Suitable well-irrigation is about 80% of the total farmland area in north Huaihe River plain of Anhui province.
实际灌溉面积指：农田、园林、草场及其他面积合计。
In the table actually irrigated area refers to aggregate farmland, orchard, grass field and other area.
耕地灌溉率、复种指数、耕地灌溉面积、粮食产量不断提高；
At the same time, the multiple cropping index, irrigation area, grain yield and the rate of irrigation had been improved increasingly.
在扩大灌溉面积的同时，研究和推广了以节水为中心的灌溉新技术。
The practices of efficient use of water were studied and popularized at the same period.
我国又是世界上第一灌溉大国，1999年灌溉面积已达到8亿亩。
China is also the world's largest irrigation country, with the irrigation area reaching 800,000 million mu in year 1999.
全年新增有效灌溉面积117.9万公顷，新增节水灌溉面积139.0万公顷。
Over 1.179 million hectares of farmland was increased with effective irrigation systems and another additional 1.390 million hectares of farmland was guaranteed by water-saving irrigation systems.
自1950年以来，全球的灌溉面积增加了一倍，而农业、生活和工业用水的数量却增加了两倍。
Since 1950, the area of the earth under irrigation has doubled and water withdrawal for agricultural, domestic and industrial purposes has tripled.
通过模型的求解，可得出计算区的最佳灌溉面积、夏粮种植比以及水库的优化调度图。
According to the proposed model, we can obtain optimal irrigated area, scale of summer grain crops and scheduling diagrams of reservoir.
大中型灌区大约占全国灌溉面积的47%，另外有大约26%灌溉是由农民打井人工浇灌的。
Large and medium systems serve about 47% of total irrigated area in the country; 26% is irrigated by tube Wells managed directly by fanners.
第三，从表格中我们看到巴西和刚果在人口数量、土地灌溉面积和人均水消费量上的巨大不同。
Thirdly, from the table, we see the huge disparities between Brazil and Congo in population, irrigated land area and the average water consumption per person.
这给传统灌溉提出了新的挑战，即不但要获得灌溉面积上的最大产量，而且要获得最大的经济效益。
This puts forward a new challenge to traditional irrigation. Not only getting high yield in per irrigation area, but also getting the most economic benefit.
叶河流域位于新疆西南部，流域现状灌溉面积737万亩，是新疆最大的灌溉绿洲，也是全国第四大灌区。
The Yelqiang River basin is located in southwest of Xinjiang. There are 7370 thousand Mu irrigation area.
采用这种设计方法可以提高喷灌灌水均匀度，并且能在不增加用水量和不均加能耗的情况下，增加支管灌溉面积。
By use of the suggested method, the irrigation uniformity of sprinkle-irrigation can be considerably improved and the irrigation area can be increased to a certain extent.
研究表明：该区随灌溉面积的扩大，地下水位上升迅速，灌区下游水位将超过临界埋深，从而引起土壤次生盐渍化。
The studies show the groundwater level is rising quickly and may surpass the critical depth along downstream area with the extension of the irrigating field, which can bring on the soil salinization.
首次提出灌区的灌溉技术和管理技术落后也属于灌区老化的范畴，并提出按灌溉面积和建筑物级别进行评估的概念。
The backward irrigation technology and management are also belong to irrigation district ageing. This view is first presented in irrigation ageing evaluation. The concept of evaluation based on irri…
过去四十年来，非洲新增灌溉面积仅为400万公顷，而同期中国和印度的新增面积分别为2500万公顷和3200万公顷。
Over the last 40 years, only 4 million hectares of new irrigation have been developed, compared to 25 and 32 million hectares for China and India respectively.
过去四十年来，非洲新增灌溉面积仅为400万公顷，而同期中国和印度的新增面积分别为2500万公顷和3200万公顷。
Over the last 40 years, only 4 million hectares of new irrigation have been developed, compared to 25 and 32 million hectares for China and India respectively.
应用推荐