It's not pressing against as much pressure.
要小些。
麻省理工公开课 - 热力学与动力学课程节选
I'm pressing on the gas. So I expect that to be a positive number. The pressure is constant 0 p. The V goes from V1 to zero.
我们对气体加压,所以这应该是一个正数,压强是常数,p,V从V1变成。
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