灌渠

鉴于训练后的人工神经网络可以精确逼近任意非线性函数，建立了基于BP网络和RBF网络的引黄灌渠斗口流量软测量模型，并精选水工试验数据构成训练样本集进行仿真训练。

Because trained ANN can exactly approach to any nonlinear function , ANN-based soft-sensing models ( BP and RBF ) are established and trained by sample-set selected from experiment-data .

利用在美国加利福尼亚州ImperialIrrigationDistrict灌渠试验得到的数据验证了最大相对误差和随机不确定度预测模型的有效性。

The validity of this model and the model of predicting random uncertainty are verified by field test data for the measurement of an irrigation canal in Imperial Irrigation District in California , USA.

血吸虫疫区灌渠技术设计探讨

Discussion on design technology of irrigation canal in schistosomiasis area

1QY&0.9型悬挂式灌渠清淤机的研制

Development of 1QY & 0.9 type hanging silt cleaner in irrigation ditches

引黄灌渠斗口流量神经元网络软测量模型

ANN-based Soft-sensing Model of Water-flow at Outlet of Irrigation Channel in Yellow River

引黄灌渠水流量自动监测系统

Automatic Monitoring System for Water Flow in Channelling Yellow River into Irrigation Canal Network

公路跨灌渠桥梁水文计算方法的探讨

A discussion on the hydrologic computation method for the highway bridge across the irrigation canal

引黄灌渠斗口流量自动测量专家系统设计

The Expert System Design about Automatic Measure of the Yellow River Ditch Entrance of Flow

沈阳西部污灌渠沉积物中污染物积累与生态毒性研究

Accumulation of pollutants in sediments and their eco-toxicity in the wastewater irrigation channel of western Shenyang

大型灌渠增设阻螺设施防止钉螺扩散综合效益分析

Analysis of comprehensive benefit on installation obstructed snails in large irrigation canals for preventing snails spreading

引黄灌渠斗口水流量软测量技术研究

Research on Soft-sensing Technique for Water Discharge at Lateral Gate of the Irrigation Channel in the Yellow River

基于短消息的引黄灌渠水流量自动监测系统

A Water-flow Auto-measuring System for Irrigation Dyke of the Yellow River Based on the Short Message of GSM

目的评价四湖区域灌渠增设阻螺设施防止钉螺扩散综合效益。

Objective TTo evaluate the comprehensive benefit of building obstacle to prevent the spreading of snail in lake region .

桶附在边缘上的水车；提高水并把水转向灌渠。

A water wheel with buckets attached to the rim ; used to raise water for transfer to an irrigation channel .

引黄灌渠斗口流量测量数据处理与分析系统

A Subsystem of Data Processing and Analysing for Measuring the Rate of Flow at Sluice in Irrigative Canal of Yellow River

这里夏季的最高气温可达摄氏45度。然而密布的灌渠和牛拉水泵，让尼罗河的水流得以经年不断，滋养周围的土地。

Temperatures here can reach up to45C in summer but irrigation canals and oxen-powered pumps keep Nile water streaming in all year round .

麦克金南博士说，外来物种会降低作物产量，堵塞灌渠，堵塞水电大坝，缩短发展投资的使用寿命。

MacKinnon says the alien species can reduce crop yields , choke irrigation canals , block hydroelectric dams and cut the lifespan of development investments .

线型建设项目主要指公路、铁路、堤防、灌渠、天然气及输油管线等跨区域呈线状分布的开发建设项目。

The linearization construction and exploitation projects mainly include the projects like the highway , railroad , dike , ditch , natural gas and oil pipeline etc.

为补偿南加州市政水管区的供水损失，加州政府计划对全美灌渠实施衬砌，并将由此节约下来的绝大部分水量分配给南加州市政水管区。

In order to compensate for the water supply loss , the state government of California plans to line portions of the All-American Canal with concrete and appropriate most of the reclaimed water to MWD .

畦面灌溉；条灌：把地块分成畦沟，使灌溉用水从水头或灌渠较高一端流到另一端的灌溉方法。

Border check irrigation ; strip irrigation : Flood irrigation in which land is divided into Border strips and water is delivered into each strip from a head or field ditch at its upper end .

引黄灌渠斗口水流量通常依据闸门开度、闸前和闸后水位等可观测信息估算。

Water discharge at the outlet of irrigation channel in the Yellow River is estimated through measurable information such as open-level of floodgate , water levels at front and back of the floodgate and so on .

他突然看到水从灌渠边上的一个洞里大量流出来。吊桶随着长长的链条升出井口，所盛的水被倾入灌溉渠内。

Suddenly he saw water pouring out of a hole in the wall of an irrigation ditch . Buckets rise on a long chain from the well , and the water is tipped out into irrigation channels .

根据辽河三角洲的实际情况及研究需要，设计了4个系列的实验测试图：灌渠密度、苇田面积大小、苇田缩减格局和泵站位置。

Four scenarios are designed to test the effect of different landscape patterns on the nutrient reduction in the reed marsh : canal density , reed area size , reed area shrinking pattern , and pumping station position .

近年来，由于对后山森林植被破坏，加之灌渠渗漏，致使龙洞沟两岸发生多处崩塌滑坡，在暴雨季节曾多次发生大规模泥石流。

In recent years the destruction of vegetation and water leakage from irrigation channels have caused rock falls and sliding on slopes in many places and in raining period the large scale debris flows happened for many times .

将床沙与悬沙分组，按汛期与非汛期引水引沙的不同条件进行不平衡输沙计算，建立了灌渠水流泥沙数学模型。

Surmounting the difficulties of lacking data of diverted discharge in branch canal , and considering non equilibrium sediment transport and different grain size distributions in flood and non flood seasons , a mathematical model of flow and sediment transport in irrigation canals is developed .

该文结合实际项目，首先介绍了引渠/灌渠/水库水情自动测报系统的功能要求，并在需求分析的基础上完成了系统的总体结构设计。

The paper firstly introduces the function requirements of the water regime automatic measuring and reporting system for the approach channel of the power station , irrigation canal or reservoir , and schemes out the overall structure of the system on the base of demand analysis .

所位水库岩溶塌陷，一般指水库蓄水后新发生的与岩溶有关的塌陷现象。广义的讲，包括发生在库坝区及灌渠区所有和水工建筑物有关的新、老岩溶塌陷的地质现象。

Reservoir karst collapse can be defined as that collapse phenomenon related to karst taking place newly after water accumulation of reservoir , and generalized definition is that all geological phenomenon of karst collapse , new or old , related to hydraulic structure in both reservoir area and irrigated area .

西夏建国后，景宗李元昊更加重视农业生产的发展，大力兴修水利工程，并亲自主持修筑了从今青铜峡至平罗的灌渠，世称“昊王渠”或“李王渠”。

Emperor Jingzong ( Li Yuanhao ) placed even higher emphasis on agricultural development . He not only had large-scale irrigation works built , but also personally took charge of the building of a canal from the Qingtong Gorge to Pingluo , called MKing Hao Canar , or " King Li Canal . "