natural fur天然毛皮naturaladj.自然的；天然的；私生的natural gas pipeline net天然气管网natural language network语言网络Natural essence of human人的自然本质Natural quality analysis自然质量分natural water-flooding天然水淹natural deduction system自然推理系统, 自然演绎体系Natural high temperature自然高温natural gas fired boiler天然气锅炉naturalized epistemology自然化认识论natural dissipated power固有消耗功率

1. Like Galileo, Cassini is powered by the natural decay of the radioactive element plutonium, which generates heat that is then converted to electricity.
   如同伽利略号，卡西尼号的能源来自放射性元素钸的自然衰变，产生热后再转换成电。