to organize major international events of forestry and its ecological construction and supervise performance of conventions;
承办林业及其生态建设的重要国际活动和履约工作；
The ecological optimum performance of a endoreversible quantum Carnot refrigerator is found, and heat transfer law of the refrigerator is discussed.
求出内可逆谐振子量子卡诺制冷机的生态学优化性能，并讨论了制冷机的导热规律。
By using numerical solution method, the optimal cycle performance characteristics of the engine at maximum power output, maximum efficiency and maximum ecological function are analyzed and discussed.
应用数值方法，分析并讨论了热机在最大输出功率、最大效率和最大生态学函数下的优化循环性能特性。
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