درجة الحرارة المئوية أو السيلسيوس
"Celsius Temperature", the thermodynamic temperature T_0, is exactly 0.01 kelvin below the thermodynamic temperature of the triple point of water.
Applicable units are those of quantitykind:Temperature
https://cdd.iec.ch/cdd/iec61987/iec61987.nsf/ListsOfUnitsAllVersions/0112-2---62720%23UAD023
"Celsius Temperature", the thermodynamic temperature T_0, is exactly 0.01 kelvin below the thermodynamic temperature of the triple point of water.
"Celsius Temperature", the thermodynamic temperature $T_0$, is exactly $0.01$kelvin below the thermodynamic temperature of the triple point of water.
$t = T - T_0$, where $T$ is Thermodynamic Temperature and $T_0 = 273.15 K$.
http://www.iso.org/iso/catalogue_detail?csnumber=31890