fan ventilator 风扇式通风机 ; 叶片式通风机 ; [建] 风扇通风器 ; 风扇通风机
main fan ventilator 主扇装置
fan ventilator detail 风扇通风机
fan total head ventilator 风扇式通风机
Pressurized ventilator( air feed) and smoke extraction fan are interlockingly controlled.
加压送风机（补风）与排烟风机联锁控制。
In addition to JTB series Roots blower, our company also produces and sales low-noise DT tank centrifugal fan, T35/BT35, T30 axial fans, CF more airfoil centrifugal fan and axle roof ventilator.
我公司除生产销售JTB系列罗茨风机外，同时还生产销售DT低噪声柜式离心风机、T35/BT35、T30轴流风机、CF多翼型离心通风机及DWT型轴流式屋顶通风机等。
Frequency conversion control system of local fan of ventilator was introduced in this paper.
介绍了井下通风局扇的变频控制系统。
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