available energy 可用能 ; [核] 有效能量 ; 有用能 ; 有效能
available energy calculation 计算
convective available energy CAPE 对流有效位能CAPE
available energy lost 有用能损失
total available energy 总有效能量
Maximum available energy 最大可用能
moisture available energy 湿比有效能量
If we could figure out how to improve the efficiency with which we use energy, we can do a lot more work with the energy that is available.
如果我们能弄清楚如何提高我们使用能源的效率，我们就能用可利用的能源做更多的事情。
Generating enough light could be prohibitively expensive, unless cheap, renewable energy is available, and this appears to be rather a future aspiration than a likelihood for the near future.
除非有廉价可再生能源，否则制造足够光的成本可能会高得令人望而却步，而这似乎只是未来的愿望而非近期能实现的。
With less energy produced in warmer years and more being consumed just to survive, there is even less energy available for growth.
随着气候变暖时产生的能源的减少以及生存消耗的能源的增加，可用于生长的能源就变得更少了。
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