åä½æ¨ªæªé¢ç§¯çä¼ çéçï¼
Q = k1 ÎT1/L1 = k2 ÎT2/L2
=> ÎT1+ÎT2 = Q(L1/k1 + L2/k2)
400 = 350[0.240/0.8 + L2/(0.09+1.25*10^(-4))]
å¾ï¼L2 = 0.0760 m = 76 mm
Q = k1 ÎT1/L1 = k2 ÎT2/L2
=> ÎT1+ÎT2 = Q(L1/k1 + L2/k2)
400 = 350[0.240/0.8 + L2/(0.09+1.25*10^(-4))]
å¾ï¼L2 = 0.0760 m = 76 mm
温馨提示：答案为网友推荐，仅供参考
相似回答