Used water is treated and then either safely disposed of, reused for industrial purposes or air-conditioning, or mixed with reservoir water for drinking.
（水资源很少被浪费。） 使用过的水经过处理后通常若不是被安全地排放掉，就是（使用过的水经过安全处理后，通常会）重新应用于工业生产或空气调节，或者和水库中的水进行混合，成为饮用水。
They are employed by refrigeration and air conditioning installation contractors, various industrial Settings, food wholesalers, engineering firms and retail and servicing establishments.
他们受雇于制冷与空调安装工承包商，各种工业环境，食品批发商，工程公司和零售及服务机构。
Chongqing industrial park will production centrifugal units, screw units, air-cooled heat pump units consisting mainly of large central air conditioning.
而重庆工业园将生产离心式机组、螺杆式机组、风冷热泵机组为主的大型中央空调。
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