植物对金属的吸收主要取决于自由态离子活度。

Plant uptake of a metal depends primarily on the free metal ion activity.

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白藜芦醇在自然条件下，以自由态和糖苷两种形式存在。

Resveratrol exists in the glycoside form which is known as piceid and free form.

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直到现在以前，实验中已经制造出了反原子，即反氢原子，但是只是在自由态下。

Until now, experiments have produced anti-atoms, namely of hydrogen, but only in a free state.

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And now, what is this saying, the equilibrium state is the one with the lowest possible enthalpy.

这时，上面的结论表明,平衡态是自由焓最小的态。

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And knowing now how to calculate these free energies especially the Helmholtz and the Gibbs free energies,that's what's going to guide us in really calculating quantitatively, OK, where will equilibrium lie.

知道如何计算,这些自由能,尤其是亥姆赫兹和吉布斯自由能之后,这些数值计算就能告诉我们，平衡态到底是什么样子。

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So, if, for example, we were looking at a hydrogen atom in the case where we have the n equals 1 state, so the electron is in that ground state, the ionization energy, it makes sense, is going to be the difference between the ground state and the energy it takes to be a free electron.

电离氢原子所需要的能量,如果我们看n等于1的情况,电子在基态，那电离能，很合理的就是基态,和自由电子态的能量差。

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