Used water is treated and then either safely disposed of, reused for industrial purposes or air-conditioning, or mixed with reservoir water for drinking.
They are employed by refrigeration and airconditioning 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。
3
Chongqing industrial park will production centrifugal units, screw units, air-cooled heat pump units consisting mainly of large central air conditioning.