The results indicate that irrigation water quality has great effect on the chemical properties of lawn soil.

结果表明，灌溉水质对草坪土壤的化学性质有很大影响。

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Irrigation water quality is one of the important factors that influence growth and quality of potted flowers.

水质是影响盆栽花卉生长和品质的重要因素之一。

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The effect of irrigation water quality on unsaturated hydraulic conductivity (k) of undisturbed soil and its mechanism were studied.

本文研究了灌溉水质对田间原状土壤非饱和导水率的影响及其机理。

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These challenges include such acute development needs as installing piped drinking water for households, deploying high-quality irrigation systems with locally-accessible replacement parts, and using the latest mobile technologies for banking, sharing vital health data, paying salaries, and checking commodity prices.

WHITEHOUSE: Science and Technology an Indispensible Part of U.S. Development Policy Worldwide | The White House

The second phase involved filtering the waste-water a third time, to bring it up to irrigation grade quality, so that it could be reused locally without upsetting anyone downwind of the plant.

FORBES: Making Rum a Green Enterprise