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Somebody say it real loud. Yes, the system is working on the surroundings, right? It's pushing out against them.
有人很大声的回答了，对，系统在对外做功，他把外界向外推开。
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The reason why literacy is required of everyone is because we don't live to 200.
为何每个人都需要文化素养？,因为我们活不到200岁,我们出于对外界的好奇。
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It's not going to be zero this time because we have non zero heat exchange between the system and the environment, right.?
热力学量，但是现在让我们看一下,我们的特殊函数，这次它不会是零,因为系统与外界的热量交换并不是零，对吧？
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Consequentialist moral reasoning locates morality in the consequences of an act, in the state of the world that will result from the thing you do.
后果主义道德推理,认为是否道德取决于行为的后果，取决于你的行为对外界所造成的影响。
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There's a diverse range of responses that might occur, but that response is initiated by this simple chemical process of a ligand binding to a receptor.
细胞对外界信号可能会发生不同的反应,但这些反应都源自,配体和受体结合这个简单的化学过程
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His verse actually had a physical impact on the world.
他的诗句能对外界产生具体的影响。
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Delta v is positive in this direction here, the work is negative. So work on the system is positive. Work done by the system is negative.
功是负的，总而言之,外界对系统做功的符号为正。
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Wirr Minus w irreversible, this is the work which is done to the environment by the system, -Wrev minus w irreversible is always smaller than minus w reversible.
一点提示，不可逆过程中系统,对外界做的功，总是小于,之前我们。
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It's an expansion, so we're doing work against the environment, or to the environment.
压强降低，系统对，外界做功。
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There might be a mass here. This could be a car.
系统对外界做功。
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This is a positive number, p1 is smaller than p2.
这就是系统对外界做的功。
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The total work is less than zero.
说明系统对外界做功。
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