Send the following on WhatsApp
Continue to ChatLink: https://www.leybold.com/ko-kr/knowledge/vacuum-fundamentals/fundamental-physics-of-vacuum/outgassing-and-the-mean-free-path
Link: https://www.leybold.com/ko-kr/knowledge/vacuum-fundamentals/fundamental-physics-of-vacuum/outgassing-and-the-mean-free-path