經安全檢測,此網站為安全網站,請放心前往原始網址!

Liquid nitrogen - Wikipedia, the free encyclopedia

Liquid nitrogen is nitrogen in a liquid state at an extremely low temperature. It is produced industrially by fractional distillation of liquid air. Liquid nitrogen is a colorless clear liquid with density of 0.807 g/ml at its boiling point and a dielectr

en.wikipedia.org

網址安全性掃描由 google 提供