1. Liquid nitrogen is inert, colorless, odorless, non corrosive, nonflammable, and extremely cold. 液态氮是惰性的,无色,无嗅,无腐蚀性,不可燃,温度极低。
2. Liquid argon is tasteless, colorless, odorless, noncorrosive, nonflammable, and extremely cold. 液态氩无色,无味,无嗅,无腐蚀性,不可燃,温度极低。
3. Teflon is a tough, waxy, nonflammable organic compound with a slippery surface, attacked by very few chemicals and stable over a wide temperature range. 铁氟龙是一种坚韧、蜡质、不易燃烧的有机化合物,表面光滑,很少几种化学物质能黏附其上,在很宽的温度范围内保持稳定。