точка конденсации(the temperature at which air can hold no more water. Below this temperature the water comes out of the air in the form of drops. OALD Alexander Demidov)
температура точки росы по углеводородам(The hydrocarbon dew point is the temperature (at a given pressure) at which the hydrocarbon components of any hydrocarbon-rich gas mixture, such as natural gas, will start to condense out of the gaseous phase. It is often also referred to as the HDP or the HCDP. WK Alexander Demidov)