求翻译：当代中国正处于“双重社会转型”时期，传统与现代、现代与后现代，不同时期价值观念的叠合和冲突造成了典型的价值失范现象是什么意思？

Contemporary China is in a "double social transition" period, traditional and modern, the modern and postmodern, superimposed and conflict of values at different times a typical phenomenon of value without