A laptop's battery and ventilation fan are two other suspected common culprits.
手提电脑的电池和散热风扇是另外两个可能的原因。
On the far right is the ventilation fan.
右手边最尽处有一台抽气扇。
The enclosure ventilation fan is mounted on the exterior of the enclosure.
机箱通风扇装在机箱外部。
A backup ventilation fan activates if the enclosure ventilation fan does not achieve required air flow.
如机箱通风扇提供的气流达不到要求，则备用通风扇将启动。
The system is designed as circulation absent and A-A VF controlled one, in which a responsive motor driving the main ventilation fan is controlled in a vector control technology without speed sensor.
系统采用无环流交-交变频控制方案、应用无速度传感器的矢量控制技术对拖动煤矿主扇风机的感应电动机进行控制。
The technology principle, construction and design calculation of resistance noise reduction for HD6 5 1 big power local ventilation fan developed recently are discussed in this paper.
介绍了新研制的HD 651型大功率局部通风机成功降噪的阻性消声技术原理、结构和有关计算，并应用在通风机上进行实际检测。
The Industrial Ventilation Fan is ideal for use in factories and warehouses.
工业换气扇是工厂和仓库的理想选择。
The Industrial Ventilation Fan is ideal for use in factories and warehouses.
工业换气扇是工厂和仓库的理想选择。
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