They would also feature passive heating and cooling systems, as well as natural ventilation, helping to keep electrical demand low.
这些太阳能板以被动加热和冷却系统为特色，还有自然通风设施，以降低电力需求。
Outlet air temperature of underground tunnel can meet ventilation design demand of hydropower house. Tunnel ventilation can provide a comfortable working environment for the house.
坝体廊道出口处空气温度满足水电站厂房的通风空调设计要求，廊道送风可以为厂房提供良好的工作环境。
Wherever there is demand for intelligent ventilation, wherever energy needs to be reduced and performance maximized, our EC motors are by now the preferred choice, reliably doing their job.
无论是智能通风、节能还是性能方面的要求，EC电机都是目前最佳的选择。
When determining air demand for tunnel ventilation, the air demand is taken from the bigger one between calculation of CO concentration index and smog concentration index.
隧道通风需风量的确定是取CO浓度指标和烟雾指标计算出来的较大者作为需风量。
In the main rooms, the automatic ventilation system has been equipped with adjustable volume flow control units to be able to use the ventilation system on demand and therefore saving on energy.
在主要的房间里，自动通风系统安装了可调节风量控制装置，使通风系统能够根据要求使用，从而节省能源。
In the main rooms, the automatic ventilation system has been equipped with adjustable volume flow control units to be able to use the ventilation system on demand and therefore saving on energy.
在主要的房间里，自动通风系统安装了可调节风量控制装置，使通风系统能够根据要求使用，从而节省能源。
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