According to the industrial organization theory, market concentration ratio, product differentiation and the entry barrier are the indispensable parts of description.
第一章综合市场集中度、产品差别化和进入壁垒这三方面的分析，勾勒出1997-2001年期间我国商业银行市场结构的基本特征。
参考来源 - 我国商业银行市场结构研究·2,447,543篇论文数据，部分数据来源于NoteExpress
This would amount to a significant entry barrier.
这就成为一个重大的加入障碍。
The entry barrier is extremely low, especially for a programmer who has experience with a C-like language.
入门极其容易，尤其是对于已经具有 C 类语言的经验的程序员来说。
Due to the relatively low entry barrier in the past, a lot of enterprises have entered the motorcycle industry.
过去由于进入壁垒较低，致使大量的企业进入摩托车行业。
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