When I started to develop my cyclonic vacuum cleaner separation systems, separating dust from air, I went to the experts and they said you'll never make a cyclone that clears dust out of air below 20 microns.

当我开始开发我的旋风吸尘器分离系统时，分离空气中的灰尘，我去找专家，他们说你永远制造不出能从空气中清除 20 微米以下灰尘的旋风分离器。