The two suggestions are pronounced:

DARAJAT AL-HARARA AL-DEENAMIYYA
DARAJAT AL-HARARA AL-DEENAMEEKIYYA

There is at least one other possible way to translate this term, but first, let us look at the following definition:

http://www.its.bldrdoc.gov/fs-1037/dir-037/_5419.htm

"Thermodynamic temperature: A measure, in kelvins (K), proportional to the thermal energy of a given body at equilibrium. Note 1: A temperature of 0 K is called "absolute zero," and coincides with the minimum molecular activity (i.e. , thermal energy) of matter. Note 2: Thermodynamic temperature was formerly called "absolute temperature." Note 3: In practice, the International Temperature Scale of 1990 (ITS-90) serves as the basis for high-accuracy temperature measurements in science and technology."


Based on the above definition and notes, it is also possible to translate the term as DARAJAT AL-HARARA AL-MUTLAQA
درجة الحرارة المطلقة

Fuad

Al-Khatib’s New Dictionary of Scientific and Technical Terms