The water price is a key problem of the water saving, supply-demand regulating, and contradiction releasing.
水价格是节约用水、调节供需、缓解矛盾的关键问题。
An Introduction to a closed water-saving equipment by recycle water, it may resolve the problem of water waste resulted from distillation, circumfluence, negative-pressure filtration, etc.
介绍了一种可解决化学实验室因蒸馏、回馏、减压抽滤等基本操作引起的，大量冷却水流失问题的封闭式循环节水装置。
The key problem needed to be solved in water saving agriculture is to increase the utilization efficiency of rainfall and irrigation.
提高自然降水和灌溉水利用效率是节水农业要解决的中心问题。
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