The fin-like appendage on the helmet houses a forced ventilation fan, which blows fresh air over the technician's face to relieve perspiration.
头盔装具上的鳍状物附属物为强制通风片，能够向拆弹专家的面部输送新鲜空气以便排除汗水。
He suggested having a ceiling electric fan installed in the room. This would solve the problem of ventilating the room, for when the fan whirled, it would draw in fresh air.
他建议安装一台吊顶电风扇。这将解决房间通风问题，因为当风扇急速转动时，它将带进新鲜的空气。
This would solve the problem of ventilating the room, for when the fan whirled, it would draw in fresh air.
这将解决房间通风问题，因为当风扇急速转动时，它将带进新鲜的空气。
To finalize the program as follows: all rooms used fan-coil plus fresh air system, this building used as a screw-type chiller cold source.
最终确定方案为：所有房间采用风机盘管加新风系统，本建筑物采用螺杆式冷水机组作为冷源。
The function of the main fan in coal mine is to keep fresh air and reduce the concentration of gas.
煤矿主扇风机的主要功能是保证井下空气畅通新鲜，降低瓦斯浓度。
Keyboard input realize temperature size adjustment, set up fresh function, realization fan circuit of indoor air for replacement.
键盘输入实现设置温度值的大小调理，风扇电路实现新风功用，对室内空气停止改换。
And if you're printing plastic at home or in your office, open a window and use a fan to keep the air fresh.
如果你要打印的塑料在家里还是在办公室，打开一个窗口，并使用风扇来保持空气新鲜。
The skirt building adopts all - air system, the guest rooms adopt fan - coil unit plus fresh air system, and the water system is four - pipe type.
裙房采用全空气系统，客房采用风机盘管新风系统，空调水系统采用四管制。
It can become all kinds of central air conditioning when it connects to combination air conditioner, fresh-air conditioner or fan coils and so on.
它可与组合式空调机组、新风空调机组及风机盘管等空气处理设备组成各种船用中央空调系统。
It can become all kinds of central air conditioning when it connects to combination air conditioner, fresh-air conditioner or fan coils and so on.
它可与组合式空调机组、新风空调机组及风机盘管等空气处理设备组成各种船用中央空调系统。
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