Substantial character of practice often produces blindness of reality or latency, so decide theory having the function to direct and criticize practice.
实践的直接现实性品格往往产生现实的或潜在的盲目性，由此决定了理论对实践的指导和批判作用。
This article tries to describe and criticize the reconstructural process to the basic theory of Chinese library science through the developments of both social undergrounds and academic reasons.
本文试图通过社会背景与学术理性的演进，来对中国图书馆学基础理论的重建过程进行描述、评析。
The research on popular culture has necessity to analyze and criticize the changes theory;
大众文化研究有必要对这些变化在理论上进行分析和批判；
应用推荐