1) utilization coefficient of irrigation water
灌溉水利用系数
1.
Revision of traditional measurement methods on utilization coefficient of irrigation water;
灌溉水利用系数传统测定方法的修正
2.
This paper describes the utilization coefficient of irrigation water research background and current situation and its calculated method, and a brief introduction of three calculated method about the utilization coefficient of irrigation water that head -tail method, typical conduit method , Comprehensive Detection method .
本文详细介绍了灌溉水利用系数的研究背景、现状及其主要推算方法,简单介绍了首尾测定法、典型渠段测量法、综合测定法三种计算方法。
2) water efficiency of irrigation
灌溉水利用系数
1.
In irrigation management,in order to increase calculation efficiency and accuracy of water efficiency of irrigation,developing corresponding software is particularly important.
在灌溉管理中,为了提高灌溉水利用系数的测算效率及准确性,开发相应的测算软件就显得尤为重要。
2.
The main factors affecting the accurate measuring of water efficiency of irrigation in traditional ways are the heavy work of measuring and difficult measuring condition.
灌溉水利用系数是衡量农业节水效果的关键指标。
3) effective utilization coefficient of irrigated water
灌溉用水有效利用系数
1.
Estimation and analysis of effective utilization coefficient of irrigated water
灌溉用水有效利用系数测算与分析
4) appraisal in water-saving irrigation
灌溉水资源利用系数
5) Recycling utilization rate of water for industry
灌溉用水利用率
6) irrigation water using efficiency
灌溉水利用率
1.
Estimating method and discussing problems for the irrigation water using efficiency in Shaanxi Province at present;
陕西省现状灌溉水利用率测算方法与问题讨论
补充资料：灌溉水利用系数
灌溉水利用系数
efficiency of irrigation water
gUan灌溉gaishui liyong水利用系数XIShU(effieieney of irrigationwater)灌入田间的有效水量与渠首引进的水量之比，常以符号刀。表示，其计算公式如下: _琳，八八。刀臼二~二二;一入1、jU为 叽式中琳为进入田间的有效总水量;叽为从渠首引进的总水量。 灌溉水利用系数是评价灌溉渠系的工程状况和管理水平的一个重要指标，它既反映了灌区各级渠道的渗漏损失，义反映了在管理过程中无益的水量损失，如日灌夜排;因过量引水或不合理的配水所引起的渠尾泄水;渠道跑水;田面跑水和深层渗漏等。 为了提高灌溉水利用系数，主要的措施是进行渠道衬砌，减少渗漏;加强用水管理，实行计划用水，防止水量浪费和无益废泄。(谢安周)
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