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在五斗橱上放上一台电视机、一台电扇,似乎是件很自然的事,但是,殊不知电扇在转动时会引起振动,传至电视机后会使显象管的灯丝也受到振动,这样会影响显像管的寿命。
It seems natural that a TV set or a fan be placed on a chest of drawers. However, it is not known that the fan will vibrate when it is rotated. When it is transmitted to a television set, the filament of the kinescope will also be vibrated. This will affect the life of the tube.