[填空题]
A length of aluminum wire is connected tq/,u 7q3 hmevmo a precision 1,ab 8 d oe:9x)*:djzqkur i6sc0.00-V power supply, and a current of 0.4212 A is precisely q9bo kdziu):,r jexdca* 68 s:measured at 20.0$^{\circ}\,C$. The wire is placed in a new environment of unknown temperature where the measured current is 0.3618 A. What is the unknown temperature? $^{\circ}\,C$
