1) standard irrigation well spacing
标准灌溉井距
1.
Based on the theory of unsteady flow of ground water and requirements of farmland irrigation, the paper puts forward the calculation formula of standard irrigation well spacing, and the experience data of Eastern Henen Plain are given.
本文提出了标准灌溉井距的含义，并根据地下水非稳定流理论，结合农田灌溉的要求，推导出标准灌溉并距的计算方法，并给出了豫东平原的经验数值。
2) irrigation rate
灌溉标准
3) irrigation water quality standards
灌溉水质标准
4) irrigation wells
灌溉井
5) irrigation well
灌溉水井
1.
The executive method of the irrigation well and the maintainence after the well completion;
灌溉水井的施工方法及成井后的养护
6) water pump for irrigation
灌溉机井
补充资料：德国国家标准(见德国标准化学会、德国标准体系)
德国国家标准(见德国标准化学会、德国标准体系)
National Standards of Germany: see Deutsches Institut für Normung, DIN;standards system of Germany
Oeguo Guol心日icozhun德国国家标准(Natio.吐S加Ln山切曲of Gen”旧ny)见德国标准化学会;德国标准体系。
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