Diffusion: Really High-quality particles measuring under 0.one micron get bounced about randomly and so are slowed by their interactions with atmospheric atoms and molecules. They ultimately drift or get bounced into a filter fiber, whereupon (another time) they adhere inside a process identified as diffusion. มีขนาดกะทัดรัด พกพาไปใช้งานได้อย่างสะดวกในทุกที่ ในบางรุ่นสามารถดูและควบคุม... waiting for link from Social Network Posts (8)