So use work out of right-hand side to run left-hand backward.
利用右边输出的功,来驱动左边的热机反方向运行。
V Minus p2, V2. Minus p delta V. So the total work is the work from the left hand side plus the work on the right hand side, p1 V1- p2 V2 which is p1 V1 minus p2 V2.
负p2V2【w=-p2v2】,即负pΔ,所以全部的功就是,左边的功加上右边的功,等于。
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