N a change in temperature of a thermally insulated gas when it is forced through a small hole or a porous material. For each gas there is a temperature of inversion above which the change is positive and below which it is negative 焦耳-汤姆逊效应 (Also called Joule-Kelvin effect)
the joule-Thomson effect焦耳汤姆逊效应
N（名词） a change in temperature of a thermally insulated gas when it is forced through a small hole or a porous material. For each gas there is a temperature of inversion above which the change is positive and below which it is negative 焦耳-汤姆逊效应 (Also called Joule-Kelvin effect)