irrigation的例句大全

The main pollution reasons include the species hydrogeologic conditions, sewage irrigation, landfill of municipal refuse, and regional groundwater drawdown.

最主要的污染原因有：独特的水文地质条件，污灌，砂石坑垃圾回填，及区域地下水位下降。

After irrigation 5 times, the total dissolved solid of 0~ 10 cm soil layer was 0.107%, and others was below the limit of 0.1%;

灌溉5次之后，除0~10cm土层全盐量为0.107%外，其他各层均低于0.1%的限度；

With increasing of irrigation frequency, pH decreased, organic content and total dissolved solid increased, ion concentration in soil solution changed obviously.

同时，随着灌溉次数的增加，土壤pH值降低，土壤有机质和全盐量增加；土壤溶液中各离子浓度有显著变化。

Pakistan also claims (though the evidence is shaky) that 600, 000 people will suffer by getting less water for irrigation.

巴基斯坦还声称（不过证据不足），有60万人因得不到充足的水进行灌溉而受难。

An experimental study of the moisture trend and irrigation in the field of interplant maize with wheat

麦套玉米农田水分动态与灌溉试验研究

There is a calculatedly abundant use of fertilizer and irrigation.

在经过周密计算之后充分使用肥料和灌溉.

At the same time, we put forth a trial and error method to study the way to determine the rational combination of technical parameters for furrow irrigation under the conditions of free draining end boundary and blocked end boundary.

同时，本文提出一种试算方法来研究自由排水沟尾边界和挡水沟尾边界条件下确定灌水技术参数合理组合的途径。

A hydraulic mathematical model of furrow. irrigation with free draining end boundary was established by using the kinematic-wave method in this paper, and a good agreement between the model result and the field test was found.

本文利用运动波方法建立了自由排水沟尾边界的沟灌水力学数值计算模型，并与田间灌水试验结果进行了比较，一致性良好。

Based on the assumption that the flow surface is an exponential curve, the Manning formula is applied to deduce the equation expressing the advance process of the irrigation water flow in ditches.

根据水流水面线为幂函数曲线假定用满宁水流公式，推求了水流在畦田推进过程的表达式。

Test and Diffusion Equation Calculation for Sand Separation in Setting Tank of Water Retention-well Development Prospect of Micro Irrigation with Well Storing Rainfall in Drought Mountain Area

旱井沉沙池中泥沙运动方程解析与试验旱井集雨微灌在干旱山区的发展前景

However, irrigation has extended both wheat and cotton farming further west.

但是, 灌溉使小麦和棉花的种植进一步向西推移.

Study on Soil Characteristic and Root Distribution of Chinese Chive in Subsurface Drip Irrigation

地下滴灌对土壤特性及韭菜根系分布的影响

Analysis of the ingredient of organic contaminant in Maize of some irrigation areas

某灌溉区玉米中有机污染物的成分分析

Study and Design of Spraying Irrigation Automatic Controller Based on Fuzzy Decision

基于模糊决策的自动节水喷灌控制器的设计

The pairing method and the plant analysis were adopted to study the effects of water penetrations in furrow irrigations with different water amounts on tiller growth and dry matter accumulation of directly sown rice in rice farming with furrow irrigation and conventional rice farming.

采用田间对比试验、植株分析方法，研究了相同畦宽（200cm）、不同灌水量的沟灌渗透栽培和常规淹水栽培对直播水稻茎蘖生长及干物质积累的影响。

High homogeneity of cultivated crop varieties can lower transaction and communication costs among fanners on the use of irrigation water. ( 3) A water user group with high social capital tends not to form a sub-group.

而村民组种植农作物的高同质性，将减少农户间协调水分配的交易成本。（3）具有高社会资本的村民组倾向不形成农户联合小组。

The highest concentrations of arsenic in rice-growing regions are mostly found in parts of Asia including Bangladesh and India where the underlying arsenic-rich bedrock contaminates groundwater used for both drinking and irrigation of rice fields.

在产大米区，检出砷浓度最高的区域为亚洲部分地区包括孟加拉和印度这些地区陆壳下层的基岩富含砷，会污染地下水，而这些水源既用于饮用，又用于稻田灌溉。

Study on the Model of Return Water Quality of Irrigation in Farmland

农田灌溉退水水量水质平衡模型研究

The factors of pump lift and pump price have been considered comprehensively in design, thus making whole irrigation system work under the economical and energy-saving condition and making the system have minimum yearly cost.

在设计中综合考虑了泵的扬程和泵的价格等因素，使设计出的整个灌溉系统运行于较经济的节能状态，并使系统的年费用最小。

The study shows that there is a great deal effects of the annual crops on the growth of the perennial forages in the first and second year under the condition of lack of irrigation and the steppe climate on Qinghai Lakeside.

初步研究结果表明，在青海环湖地区草原性气候区土壤缺乏灌水的条件下，油菜对多年生牧草第1～2年生长的影响最小，其次是对燕麦、青稞的影响最大。