所有制外部结构改革必须坚持生产力的标准，各种所有制形式并存和发展取决于生产力发展水平的多层次性。公有与私有不仅可以结合而且也可以转换。所有制内部结构改革主要是对国家所有制进行彻底的改革，解决公有产权的所有者缺位的矛盾，真正实现在生产资料社会占有基础上的劳动者个人所有制 The reform of the ownership structure must adhere to the standards of productivity. The coexistence and development of various forms of ownership depend on the multi-level nature of the level of development of the productive forces. Public and private can not only combine but also convert. The internal structure reform of ownership system is mainly to conduct a thorough reform on state ownership, solve the contradiction between the absence of owners of public property rights, and truly realize the individual ownership of laborers based on the social possession of means of production