二、請繪製船舶冷凍機之系統圖與其對應之熱力循環溫度-熵圖。應用溫度-熵圖中之冷凍機循環，定義冷凍性能係數（C.O.P. of refrigeration）以及熱泵性能係數（C.O.P. of heat pump）。（20 分）

五、請將下列英文翻譯成中文。（10 分） Marine engineers are responsible for the design of many ship systems that have the potential of causing a damaging effect upon the environment; therefore for such systems, the control of harmful pollutants, which could be discharged either into the air or water from marine vehicles, is a principal design consideration.