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- natural irrigation areas 自然水灌区
- The effective irrigation area is 72.74 million mu. 农业有效灌溉面积479万公顷。
- Effects of summer fallow in Guanzhong irrigation area. 关中灌区夏季休闲效果评价。
- Present Conditions and Thinking of Canal Lining in Luohuiqu Irrigation Area. 洛惠渠灌区渠道衬砌现状与思考。
- Ditch rider; waterman Person responsible for supervising an irrigation area. 灌区管理员负责监管灌区的人员。
- The irrigated area amount to 20000 ha. 灌溉面积共达二万公顷。
- Here the water wide, flat water, surface skin raft drifting, surf boats, the river embankment of a river to separate North and South sides of the strait to create a natural irrigation miracle! 这里水面宽阔,水流平缓,水面皮筏漂流,快艇冲浪,河中一堤将河水分出南北两岸,创造出了自然灌溉的奇迹!
- Application and Analysis of Seepage Control Technique with Vertically Paving Membrane in Qingtongxia Irrigation Area. 垂直铺膜防渗技术在青铜峡灌区的试用及分析。
- Study on Lining Technique of Seepage Control of Canal in Caodian Irrigation Area. 曹店灌区渠道防渗衬砌技术研究。
- Levee: An embankment for preventing flooding; a continuous dike or ridge (as of earth) for confining the irrigation areas of land to be flooded. 堤防:用来防止淹水的堤坝;一个连续的围堰或土坎(地表)为阻止灌溉区被洪水泛滥。
- The ten main agronomic characters of twenty-seven rice varieties was investigated in this experiment in yellow river irrigation areas of Ningxia. 摘要分别考查了宁夏引黄灌区27个水稻品种的10个主要农艺性状,对达到显著差异的7个性状进行主成分分析,并对影响单株粒重的6个性状进行通径分析。
- Some irrigation areas overestimateed the volume of exploitable groundwater, and the trend of water table decline continues. 一些灌区时地下水的可采资源量估计过高,造成目前超采仍有进一步发展的趋势。
- Besides, the water supply for irrigation areas in Kao-ping river basin will not be affected by the water resource integrated allocation. 因此,除应积极推动节约用水外,未来仍应适度开发水源以满足南部区域远程之用水需求。
- Dry mountain climate, with the size of the artificial water channel 6, the effective irrigation area of 2398 mu. 山下气候干燥,有大小人工引水渠道6条,有效灌溉面积2398亩。
- An introduction is given to the research of flowmeter of the flow measurement system for field laterals in plain irrigation areas. 对内蒙古河套灌区量水系统的总体方案、工作原理和量水计的标定方法作了简介;
- The larger irrigation area and potash fertilizer input per unit has,the higher soil salinization probability will be. 同时单位面积上钾肥使用量越高,耕地发生盐渍化的概率也越高。
- The existing motor-pumped 4670, irrigated area of over 98%. 现有机井4670眼,水浇地面积达98%25以上。
- The GIS development characteristics were analyzed and combining water resources of irrigation areas the C/S model system by means of MapObjects and Access was designed with VB. 分析GIS开发特点并结合灌区水资源信息,在VB环境下利用MapObjects和Access数据库进行C/S模型的系统设计。
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- This paper makes the calculation of diving pump hold power steel beem for rebuilding the head of channel pump station at Da ang Irrigation Area. 对大昂灌区渠首泵站换泵更新改造进行了潜水泵持力钢梁验算,结果表明,该泵站换泵更新改造方案是可行的。