This paper mainly introduces the frequency control technique and technical innovation for large-type roof fan.
简介了大型屋顶风机变频调速技术及技术创新性。
WT35-11 comes as an axial-flow roof fan that features low and medium levels of pressure and heavy wind flow and can be geared to the needs of blowing, exhaust and double-rotation reversible mode.
WT35-11型为屋顶轴流式通风机，该风机为中低压大流量风机，可设计成送风、排风或双旋转可逆式。
His plans involve building an air shaft through the roof of the control center equipped with a solar powered fan to draw air deeper into the complex.
他计划在控制室的顶上装一套太阳能驱动的换气系统，将空气泵到设施的深处。
The fan assembly is roof mounted, providing a vertical airflow pattern and uniform temperature throughout the chamber.
这种风扇装于窑顶，提供了垂直的气流并能使整个炉腔温度保持均匀。
Performance and energy conversion mechanism of a wind-driven fan installed on roof were studied through kinematical analysis and experiment.
通过运动学分析和实验测试，对风动力屋顶排风机的能量转换机理和风能利用特性进行了研究。
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。
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。
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