Describes the features and equipment of the air conditioning system, focusing on the lithium bromide units and operating mode of four-pipe water system, and summarizes the existing problems.

对武汉中石油大厦空调系统特点、设备配置等方面进行了介绍，主要对溴化锂机组及四管制系统的运行模式等进行了探讨，同时对存在的问题进行了总结。

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A small injection of phages into a water pipe, however, could clean an entire system, with the phages replicating themselves as they consume the biofilm.

然而，往管道内注入少量的噬菌体，就可以清理整个管道系统，因为噬菌体在消耗生物膜的同时可以自我复制。

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Chea Visoth of the PPWSA recalls carrying water up to his flat from a roadside tank filled by a pipe illegally tapping the public system.

PPWSA的Chea Visoth回忆说当初供水到他的公寓的管道就是从路边公共供水系统的储水槽中引出来的。

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One pipe lets water flow into the system.

VOA: special.2009.04.20

Engineers found a cracked pipe letting in standing water which was polluting the system.

BBC: Safe water may return to Broadway on Friday

Engineers found a cracked pipe was letting standing water in and polluting the system.

BBC: Broadway water still unfit 10 days after problems arose

At 8:20 p.m. on the day of the explosion the pressure data suggest there was a constant flow of sea water being pumped into the drill pipe that was displacing the heavier mud system which was the primary pressure control for the well.

WSJ: The Oil Disaster Is About Human, Not System, Failure