后妃制度依存于封建皇帝制度，也是伴随皇帝制度产生并为其所独有的。
The system of the empress and imperial concubines accompanied and depended on the feudal monarchy .
后妃制度是后宫制度的主要组成部分，包括皇后制度与妃嫔制度两大部分。
As a key component of the imperial harem system , the system of the empress and imperial concubines included tow parts .
后妃制度