1) Canal-pipes conjunctive
管渠结合
1.
Water diversion projects mainly adopt open channels(including free-flow tunnel and culvert), however, as restrictions of practical structure, terrain and buildings intersection, the open channels are often combined with pressure pipes(tunnel, inverted siphon),which is called canal-pipes conjunctive model of water diversion projects.
调水工程多数采用明渠(包括无压隧洞或涵管)输水,但由于具体结构、地形或建筑物交叉等因素的限制,调水工程常采取明渠和压力管道相结合的形式,如在明渠之间布置一段有压管道(如隧洞和倒虹吸等),这就形成了管渠结合的输水系统。
2) well-canal combination
井渠结合
1.
In the light of the problems existing in well-canal combination irrigated area such as the recession of groundwater and the shortage of usable water quantity, this paper advances various methods that were used for several years for the well-balanced adjustment on water resources.
针对井渠结合灌区目前存在的地下水位下降、可用水量不足等问题,提出了运用多年的各种水资源均衡调节的方法。
3) combined sewer
合流管渠
1.
Application and computation of compound cross section in combined sewer;
复式断面在合流管渠中的应用与计算
4) conjunctive operation of surface water and groundwater resources
渠井结合灌区
1.
In this paper,system analysis method is applied,a model of optimal conjunctive operation of surface water and groundwater resources for Fuyang, Huaibei district is established.
以安徽淮北阜阳渠井结合灌区为例，应用系统分析方法，建立了该区地面水与地下水优化调控模型，以最佳种植模式和最优工程运行策略，达到科学地加强该区的灌溉农业，合理地开发利用水资源，防止不当开采而造成的水资源浪费以及生态环境的恶化，优化调控地表水和地下水资源的目
5) well-canal combined irrigation patterns region
井渠结合灌区
1.
Based on the lacking of water-saving evaluation system in well-canal combined irrigation patterns region,fuzzy synthesis evaluation technique were used,synthesis evaluation system and assistant decision-making system by computer were developed.
针对井渠结合灌区缺乏节水评价指标与评价方法等突出问题,采用模糊综合评价方法,建立了井渠结合灌区节水农业综合评价指标体系,开发出了计算机辅助评价决策系统,该系统在国家节水农业重大科技专项"山东威海井渠结合节水技术集成与示范区"应用表明,系统确定的评价指标与评价方法科学、合理,评价结果可靠,计算机辅助管理系统性能稳定,操作简便。
2.
Based on the dispersible irrigation water resources,lower irrigation water efficiency,agricultural water resources shortage,and severe environmental problem in Weihai well-canal combined irrigation patterns region,the pipeline net project of multi-water resources and the optimal schedule of water resources were used in this area.
针对丘陵地区灌溉水源分散、灌溉保证率低、农业缺水严重、生态环境恶化等突出问题,将多水源联网工程技术与优化调度技术相结合,建立了井渠结合灌区多水源联网优化调度模型,大大提高了灌区水资源的利用效率和灌溉保证率。
6) irrigation by conjunctive use of surface and ground (water
井渠结合灌溉
补充资料：非结合环与非结合代数
非结合环与非结合代数
on-associative rings and algebras
非结合环与非结合代数【珊心胭仪妇柱视血娜.d alge-b旧s;。eaceo””姗.oe.二、双a.幼。6P。」 具有两个二元运算+与，，除了可能不满足乘法结合律外，满足结合环与代数(a洛。clati记nn邵and目罗b璐)之所有公理的集合.非结合环与代数的第一批例子出现在19世纪中叶，是不结合的(Ca外呀数(c盯触yn山n1比IS)和更一般的超复数(h”姆rComp恤nUmber)).给定一个结合环(代数)，如果用运算〔a，bl二ab一ba代替原有的乘法，其结果是一个非结合环(代数)，这是个Lie环(代数).另一类重要的非结合环(代数)是Jo攻lan环(代数)，它们可由在特征非2的域(或有1和1/2的交换的算子环)上的结合代数中定义运算a·b=(ab+ba)/2得到.非结合环与代数的理论已经发展成代数学的一个独立分支，展现出与数学的其它领域以及物理学、力学、生物学及其他学科的许多联系.这个理论的中心部分是熟知的拟结合环和代数(n比ly一别粥戊泊石wn刀乡缸记a】罗bras)的理论，它们有:Lie环和珠代数，交错环和交错代数，北攻坛幻环与Joltlan代数，MaJ几哪B环和Ma月五U口B代数，以及它们的某些推广(见Ue代数(Lieal罗bra);交错环与代数(司加叮必tiverm邵alld目罗b挑);J加止川代数(Jo攻协nal罗bIa);M幼城e。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条