For air-conditioning water system, the transmission power ratio of the total energy consumption increases with the system scale increases.

对于空调水系统来说，输送能耗占总能耗的比例随系统规模的增大而增加。

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An 80 CMS pipe with a total length of 300m is buried along site, working as a Canadian pipe system that allows pre-conditioned air.

80公分的管子总长300米，沿着场地埋设，用作加拿大管道系统，允许预装空调设备。

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Dust sample in blast pipe was collected when centralized air ventilation system was off, the total content of the bacterium and fungus was examined.

集中空调关闭期间，采集集中空调通风系统送风管内的积尘样品，检测其细菌总数、真菌总数；

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The boost from a more efficient system would still only be a fraction of total air passenger transport in Europe.

BBC: EU Commission: Airport slots need improvement