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本文从热力学第一定律和热力学第二定律基本原理出发,对(?)效率定义进行分析和探讨.提出过程(?)效率和循环(?)效率概念.文中导出了一些热工设备的(?)效率计算公式,并指出提高设备(?)效率的主要途径.
This paper starts from the first principle of thermodynamics and the second law of thermodynamics, analyzes and discusses the definition of (?) efficiency, and proposes the concepts of process (?) efficiency and cycle (?) efficiency. Some thermal equipments are derived in this paper. ) Efficiency calculation formula, and pointed out the main way to improve the efficiency of equipment (?).