You'll have either a positive energy balance, a negative energy balance or a perfect balance.
你要么有一个正能量平衡，要么是负能量平衡，或是一个完美平衡。
Lower reproductive performance of high producing dairy cows is associated with negative energy balance (NEB).
高产奶牛繁殖性能下降与能量负平衡(NEB)有关。
Negative energy balance: If you end up with a negative number, you've found the energy imbalance necessary for weight loss.
负能量平衡：如果你得到一个负数，你会发现减肥所需的能量是不平衡的。
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