将有限时间热力学、非平衡量子统计理论和火用经济学相结合，导出了量子斯特林制冷机的最大利润率以及对应的性能界限。
Comprising the finite time thermodynamics, nonequilibrium statistical theory and exergeocnomics, the maximum exergeoeconomic profit and performance limit are derived in the article.
中国两个最大的银行，中国农业银行和中国银行，在本季度收益方面表现活跃，利润率高达30%左右，坏账率两行均有所下降。
Two of China's biggest Banks posted robust earnings for the quarter, with profit up by around 30% at Agricultural bank of China and bank of China.
由于监管的放松和行业的竞争使得赌业的利润率下降，从而玩家自己成为最大的赢家。
The biggest winners are punters themselves, as deregulation and competition drive down margins.
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