Ruthen.露丝Ruthn.怜悯；后悔Ruth：鲁思； 露丝(女子名).Rutherford backscattering technique卢瑟福背散射技术ruthenium ammonia synthesis catalyst活性炭表面改性rutherford backscattering spectroscopy卢瑟福背散射光谱学Rutherford backscattering/channeling卢瑟福背散射／沟道ruthenium- iridium bimetallic catalyst钌-铱双金属催化剂ruthenium-based ammonia synthesis catalyst钌基氨合成催化剂Ruthiessly self-centred psychopathic schemers.高度自我中心的病态阴谋家。Rutherford'-alpha-'-particle scattering experiment漫游世界