建立了一个包括土壤层、塑膜覆盖物、植物冠层和大气边界层的系统，系统中的各层进行了能量平衡计算。
A system consisting of soil layer, mulch layer and atmospheric boundary layer is developed and energy balance equation for each layer is derived.
但是，如果我们知道，物质在固相，液相和气相中所有可能态的能量，统计力学告诉我们，我们可以计算这些相的平衡问题。
But again, if you know all the energies of the possible states, in the solid, in the liquid and the gas, statistical mechanics shows us that we can calculate the equilibrium between those.
如果你吃一个合适的平衡膳食，最好的消息就是你可以把计算……胆固醇、能量、脂肪、碳水化合物等忘记。
The good news is you can forget counting... cholesterol, calories, fat grams, carbohydrates, etc, if you eat a properly balanced diet.
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