However, before 1994, per farming capita income obstacle had been relatively serious and thus taken as the main obstacle factor.
在1994年之前，农民人均收入障碍度较大，是主要的障碍因素。
A research for main is to creative policy in technique in primitive in enterprise environment obstacle factor.
第四章主要是对我国企业原始技术创新政策环境障碍分析与对策研究。
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