So this delta energy here is very simply the energy of the initial state minus the energy of the final state.

很简单的，这个能量差等于,初始能量减去末能量。

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OK, so, the thing about a state function is that the function has a value for initial conditions and at final conditions.

态函数的特点是,在初始状态有一个值,在末状态也有一个值。

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