The final few pages of the book are not about history but the future, where "cataclysm looms on every side" as we face a finite supply of water but a growing pattern of excessive use.
该书的最后几页的内容与历史无关，而是关乎未来 -当我们面临水资源有限供给却依然过度消耗的时候，未来“灾难此起彼伏”。
Note: the inlet hot supply is to be connected to the "h" side of the valve, the cold supply side to the "c" side and the mixed water outlet to the "m" side.
注：热水供应进口端连接到阀门的“H”一侧，冷水供应连接到另一侧“C”上，混合水的出口连接到“M”一侧。
We use water in both places, but the above-mentioned research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects.
我们在这两个地方都会水，但上面提到的研究指出，为杀死细菌而添加在我们地区用水中的化学药剂会带来不良的副作用。
A ditch or other water supply large enough to flood the basin must be available on one side.
在格田的一侧必须有足以淹没格田的供水渠道或其他供水设施。
Note: the potable water expansion tank shall be installed in the cold water service pipe line on the supply side of the water heater.
注：饮用水膨胀罐应该安装在热水器的供水端的冷水维修管道上。
On the other side, the increasing demand for water supply will decrease the amount of water for diluting wastes.
另一方面，用水需求的不断增长将使得可用于稀释废水的水量大大减少。
On the other side, the increasing demand for water supply will decrease the amount of water for diluting wastes.
另一方面，用水需求的不断增长将使得可用于稀释废水的水量大大减少。
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