Small compact design & quiet operation.
设计小巧紧凑，运行安静。
Small size, high efficiency, quiet operation.
体积小，高效率，安静运行。
Extremely quiet operation, low energy consumption.
运行安静、耗电量低。
The diaphragm design for extremely quiet operation.
采用膜片设计其运作非常安静。
Quiet operation, for a more comfortable work environment;
超静音的运行，让工作环境更加舒适；
High Grade Balls - Quiet and smooth operation even at high speed.
在高速运转时也能保证安静流畅。
It was very quiet in operation, and of simple construction with fixed blades.
其在运行过程中非常安静，而且固定叶片的结构简单。
It was very quiet in operation, and of simple construction with fixed blades.
其在运行过程中非常安静，而且固定叶片的结构简单。
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