Even powerful ventilation fans don't effectively remove secondhand smoke from the air.
Insist that smoking restrictions be enforced in your workplace. Even powerful ventilation fans don't effectively remove secondhand smoke from the air.
The fin-like appendage on the helmet houses a forced ventilation fan, which blows fresh air over the technician's face to relieve perspiration.
Filtered ventilation fans prevent airborne dust particles from being drawn into the chassis.
The only thing that denotes the elevator to be a Schindler is the characteristic annular ceiling ventilation fan grille design.
What is more, tunnels need power for lights and ventilation fans, and to run pumps when they flood, whereas Bridges require almost none.
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.
The inside equipment seems a bit not well maintained. The ventilation fan switch is broken, and the interior floor indicator shows 'G' with the car actually at 1/F.
Minimize your use of ventilation fans such as bathroom fans and kitchen hood fans in winter.
In each life or activity region, there are shower room of hygiene and related fan, air conditioner, dim stove, ventilation fan.
On the far right is the ventilation fan.
國文精選館
