preflood water supply quantity 汛前实际供水量
free water supply quantity 免费供水量
Is water supply adequate in quality, quantity, and temperature in areas where needed?
在用水区域，其水供给在质，量，和温度方面是否足够？
The safety water supply distribution system means that the finished water can meet the users' need from the water quality, water quantity and water pressure at the same time.
管网安全供水是指在出厂水质合格并具有足够水量和压力的前提下以尽可能低的造价，同时满足用户在水质、水量及水压三方面的要求。
The present problems are mainly embodied in the bad water quality, not enough water quantity, inconvenient pick-up, no supply of safe water, and so on.
我国农村饮用水安全问题主要体现在水质差、水量不足、取水不便、不能保证供给等方面。
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