Difference: China Academy of Sciences has entity research units, including organs, departments, subordinate research institutes (institutes, centers and stations), supporting units, enterprises and affiliated universities of China Academy of Sciences. A considerable number of academicians of China Academy of Sciences work in China Academy of Sciences and its subordinate research institutions and universities, and some work in other units and even overseas.
China Academy of Engineering is the highest engineering technology consulting institution, and there is no subordinate university or subordinate entity research institute. Academician of China Academy of Engineering works completely in other units outside the hospital.