There is a great potential of water saving in industry due to the low water use efficiency in China.
我国工业用水效率总体水平还较低，节水潜力很大。
Due to no direct irrigation cost in Self-flowing irrigation Zone along Yellow River, the efficiency of water use is also lowest.
沿黄自流灌区由于没有直接灌溉成本，其用水效率也是最低的。
Due to no direct irrigation cost in Self-flowing irrigation Zone along Yellow River, the efficiency of water use is also lowest.
沿黄自流灌区由于没有直接灌溉成本，其用水效率也是最低的。
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