8.试证明μJT=-(CvJ-xp 1).μ为焦耳系数,J=κ为压縮系数-( 8.试证明μJT=-(CvJ-xp 1).μ为焦耳系数,J=κ为压縮系数-( 发布时间:2025-09-15 19:34:51