1.【化】致冷剂,冷冻剂;低温[冷却]粉碎
1.a substance such as liquid nitrogen used in producing extremely low temperatures
1.Monitors should be available to check for oxygen concentrations in the atmosphere when working with inert cryogens or with liquid oxygen.
当与惰性低温液体或液氧一起工作时，应备有监测器来检查空气中氧的浓度。
2.We can go much further. We can build space tugs, orbiting platforms for holding cryogens and water. There's another thing.
我们可以更近一步我们可以建立太空拖船，装载冷冻机和水的轨道平台。还有另一件事情。
3.Extremely cold cryogens such as hydrogen and helium can even freeze or solidify the surrounding air.
极低温液体，如氢和氦甚至能冷冻或凝固周围空气。
4.We can build space tugs, orbiting platforms for holding cryogens and water.
我们可以更近一步我们可以建立太空拖船，装载冷冻机和水的轨道平台。