angle of impact meaning in Chinese

看角
脉冲角
命中角
碰撞角

In this paper , the author explains the pressing and necessary of recomposing the core competition power of libraries from the angle of impact by knowledge information industry co . , knowledge information service co . , and permited digital library co . , and expounds out the research results of the author
摘要本文从知识信息产业、知识信息服务业和准数字图书馆商业公司对图书馆造成冲击的角度，对现阶段图书馆的生存环境进行了全面系统的分析，指出挖掘、重组图书馆核心竞争力是紧迫和必要的。