... Zero-Resistence Lens Technology （零风阻镜片） Active ventilation system （主动通风系统） Seal-ring lens system （密封环透镜系统) ...
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When unsafe levels of gases are detected, signals alert personnel and active ventilation systems through the fire protection system.
当探测到非安全等级的气体出现，信号就会向工作人员发出警报，并对整个消防系统启动通风系统。
Ventilation ductwork can be flexibly installed on both sides of the device, perfect ventilation and dust collection system will ensure the active ingredients of sand in the minimal loss.
冷却床引风管路可灵活地安装于设备的两侧，完善的通风除尘系统保证型砂中的有效成分损失最小。
It should be emphasized in energy utilization that passive system may have priority over active system because the former makes natural ventilation and lighting be fully used.
在能源利用上强调被动式系统优先于主动系统，因为被动式系统充分利用了自然通风与自然采光。
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