The power-split hydraulic-mechanic automatic transmission system is used to expand working area, decentralize system load characteristics, and enhance system transfer characteristics.

利用分流式传动系统可扩展系统工作区域、分散系统负荷特性、增强系统传递特性。

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Secondly, the curves of the cooling load per unit heat-transfer area varying with the coefficient of performance are investigated based on the fundamental optimum relation.

其次，从基本优化关系式出发，对单位面积制冷负载随制冷系数变化的曲线做详细的研究。

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Heating area is the closely-aligned round coils. Heating area is arranged sufficiently to reduce the surface heat load of pipe and handle the heat transfer oil safely.

受热面采用密排圆盘管，受热面布置充足，降低管子表面热负荷，是导热油使用更安全。

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