驗證網址en.wikipedia.org安全性

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...

網址安全性掃描由 google 提供