1) Irrigation frequency
灌溉频率
1.
Effects of irrigation water quality and irrigation frequency was investigated on growth parameters of cotton seedling in an unheated rain preventing greenhouse.
研究了滴灌水质与灌溉频率对棉花苗期生长的影响。
2) frequent irrigation
频繁灌溉
3) irrigation efficiency
灌溉效率
1.
Water management and the development of water-saving agriculture bases on the scientific analysis on the potentiality of irrigation efficiency, but there are still debates on "real water-saving".
正确分析灌溉效率增长潜力是水资源科学管理、节水农业健康发展的基础。
2.
The recent research findings indicate that it is very important to develop the study on irrigation efficiency of reused drained water and return water,maximization of socio-economic benefit of irrigation and the productivity of water with the scale of water use taken into consideration.
现有成果表明,研究探索诸如考虑农田排水或灌溉回归水再利用的灌溉效率、灌溉经济社会净收益极大化的经济效率以及灌溉用水尺度的水分生产率等灌溉水管理发展理念及其改善策略,对加强灌溉水管理、提高农业用水效率、确保食物安全、减少环境负效应、增加农业产出效益具有十分重要的意义和作用。
3.
In order to evaluate the agricultural water use efficiency in Shijin Irrigation District,water management data and wheat yield data in 2004~2005 were used to calculate conveyance efficiency,irrigation efficiency and water productivity.
采用灌溉水利用系数、灌溉效率和水分生产率3种指标,结合石津灌区2004~2005年冬小麦生育期内的耗水量和产量,从灌区管理与水资源利用的角度,评价了该灌区农业水资源的利用状况。
4) lowduty of water
低灌溉率
6) irrigation ensuring rate
灌溉保证率
1.
The design standard of irrigation project is usually represented by irrigation ensuring rate and selected comparatively by the method of economic analysis.
灌溉工程设计标准一般用灌溉保证率表示，常采用经济分析方法进行比较选择，笔者建议采用财务动态分析法，要求灌区内部回收率必须大于12％，净现值必须大于零。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
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