[填空题]
What is the temperature on3u rq4jb t4bhusp cau/x ay+3el5g)8 , a day w nb:z2olh ewt8.b ,yva6n;ec 0hen the partial pressure of water is 530 Pa andneltzy,. vn 2:0cbh w;o6ea8b the relative humidity is 40%? $\approx$ = $^{\circ} $ C(Round to the nearest integer)