| 释义 |
water requirements短语¹⁸⁰⁰⁹⁸⁺¹
基本例句
需水量
The conflict between ecological water requirements and economic water demand has become critical in arid and semi- arid areas with population growth and economic development.
在西北干旱、半干旱地区，随着人口增长和经济发展，国民经济需水与生态环境需水成为水资源开发利用和生态环境保护的主要矛盾。 cnki
The quantization method of three class ecological water requirements are studied.
分别研究了三种临界生态需水的量化途径。 cnki
Water requirements were measured by making use of water equilibrium, in the whole growing period and each growing stage to study the relations between millet yield and water requirement.
利用水分平衡法测定谷子全生育期的需水量及各生育阶段的需水量，从而探讨产量与需水量的关系。 cnki
According to the measured soil moisture under the optimal soil water and fertilizer conditions, crop water requirementsETc of three vegetables were calculated by soil water budget model.
根据田间水分和肥料最优控制下测定的土壤水分，利用农田水量平衡原理分别计算了花椰菜、苋菜和菠菜生长期内的作物需水量。 cnki
Based on principle of river continuum, minimum ecological water requirements in the lake outlet are that required in downstream riverbed.
根据河流连续体原理，用湖泊出口河道的最小生态需水作为湖泊出湖最小生态需水。 cnki
Firstly, the concepts related to the research of ecological and environmental water requirements of river course have been reviewed.
首先，回顾了与河道生态及环境需水研究有关的概念； cnki
How to evaluate ecological water requirements is a problem in electric power engineering water resources argumentation.
如何计算生态需水成为电力工程水资源论中面临的问题。 cnki
Single crop coefficient approach is simpler than dual crop coefficient approach. It is suggested to using single crop coefficient approach for calculating crop water requirements of growth stages.
单作物系数法比双作物系数法简单，建议在进行生育期作物需水量计算时采用单作物系数法； cnki
This paper reviewed the methods for computing crop water requirements and emphasized the method based on reference crop evapotranspiration.
评述了作物需水量的计算，并着重分析了基于参考作物蒸发蒸腾量计算作物需水量的方法。 dictall
This paper is just based on above purposes to study water resources carrying capacity and ecological environmental water requirements of Yangtze River basin.
本文正是基于以上目的，研究长江流域内生态环境需水量及流域内水资源的承载能力。 cnki
This paper takes the Bojili Irrigation District BID as an example to study crop water requirements and irrigation scheduling for improvement of water management at both levels.
本文以山东簸箕李灌区为例，研究引黄灌区的作物需水量和灌溉制度，为改进灌区和流域水管理提供科学依据。 cnki |