Three design models of the cold-source of central air conditioning systems are discussed: regular water cooled chiller operation, partial cold-storage operation, and full cold-storage operation.

讨论了中央空调系统冷源的三种配置模型，设计了常规冷水机组运行、部分蓄冷运行和全部蓄冷运行的方案，分析了部分蓄冷运行和全部蓄冷运行的使用条件。

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Convert system with three-way control totwo-way, and modulate pump operation instead of constant full volume waterflow.

将系统从三向控制转换成双向，并调整水泵运作，而不是一成不变的使用最大量的水流。

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To dispatchers in Lower Manhattan, that is the most obvious sign that all is still not well with PATH, a vital link for New Jersey commuters that still isn't back to full operation nearly three months after superstorm Sandy.

WSJ: PATH's Road Back Is Rocky

Last month, the EEAS said it was bringing into use the 15 vehicles to help cut delays, but has now revealed that only three of them are in full-time operation.

BBC: England