...tem（自平衡式新风系统）、EnviraCaire Duct Mount Humidifier(EnviraCaire风管加湿系统)、Central Vacuum System(中央吸尘系统)、Food waste Disposal（厨房食物垃圾处理机）等六大产品。
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In addition, indoor air system, heat recovery systems, central vacuum system, fire doors Solenoid Valve Control system and indoor fire hose system configurations are rare in China.
此外，室内空气系统，热回收系统，中央真空系统，防火门电磁阀控制系统和室内消防水带的系统配置在中国是罕见的。
Combined with our Vacuum Chambers and Central Filter Units we can create the perfect system for you.
真空室和中央过滤装置结合，可以为您创建完美的系统。
Tube Web obstruction property of Roots central vacuum cleaning system is analyzed with fluid mechanics and industry ventilate principle.
应用流体力学和工业通风原理，分析了罗茨中央真空吸尘系统的管网阻力特性；
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