Now, in Inner Mongolia, Helingeer county economy is a successful example that a model of the integration of theory and practice.
因此，研究县域经济有深远的意义。 和林格尔县正是一则县域经济理论和实际发展情况相结合较成功的例子。
参考来源 - 和林格尔县域经济发展壮大问题研究·2,447,543篇论文数据，部分数据来源于NoteExpress
方法：采用分组，随机的调查方法，对和林格尔县的眼病和主要致盲原因进行调查。
Methods: a random and grouped method was used to investigate the main cause of eye disease and blindness in Helinger County.
前言：目的：视觉2 020行动是于1999年发起的，目前与之相关的许多项目在进行中，为了配合这一行动，乃调查和林格尔县主要眼病和致盲原因。
Objective: Vision 2020 is launched in 1999, currently a lot of program is undergoing accompany with this program, so as to investigate the main cause of eye disease and blindness in Helinger County.
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