non-condensable
adjective environment, chemistry specialized (also US noncondensable, UK non condensable) uk/ˌnɒn.kənˈden.sə.bəl/ us/ˌnɑːn.kənˈden.sə.bəl/
（气体）不可凝结的
(of a gas) impossible to make into a liquid or solid state
Carbon dioxide and methane are non-condensable greenhouse gases than do not precipitate from the atmosphere. 二氧化碳和甲烷是不可凝结的温室气体，不会从大气中析出。
The most important issue related to human health is believed to be the emission of noncondensable gases, including hydrogen sulfide, mercury, and radon.
- More examples
- During the condensation of the saturated steam, air and other non-condensable gases are discharged on the object to be sterilized.
- In condenser air extraction, the incoming non-condensable air load is saturated with steam.
- A vacuum pump is needed for the removal of the non condensable gases from the condenser.