A.導熱系數(shù) B.放熱系數(shù) C.輻射系數(shù) D.傳熱系數(shù)
A.水的自然對流 B.水的受迫對流 C.空氣的自然對流 D.空氣的受迫對流
A.λ/(δF. B.δ/(λF. C.l/(αF. D.l/(KF.