effective utilization factor
effective utilization factor
有效利用系数
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The effective utilization rate of agricultural irrigation water is very low. Its utilization factor is below 0.4 that there are great potentialities on water saving in irrigated regions.
农业灌溉水有效利用率低下，灌溉水利用系数不足0.4，灌区节水有相当大的潜力。
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