much more efficient use of water and fertilizer;
更为有效的利用水、肥；
And we should make efficient use of water to avoid wasting it.
并且我们应该做高效果的用途水禁止华侈它。
Hirsch talked more about the efficient use of water at power plants.
赫希谈到了更多关于电厂节水的情况。
The practices of efficient use of water were studied and popularized at the same period.
在扩大灌溉面积的同时，研究和推广了以节水为中心的灌溉新技术。
The practices of efficient use of water were studied and popularized at the same period.
在扩大灌溉面积的同时，研究和推广了以节水为中心的灌溉新技术。
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