Since the construction of the Middle East Rail in 1897 to 1937 when Japanese Puppet Regime carried out the economic control policy, which was the only relative decline period of Qiqihar.

自1897年中东铁路修筑至1937年日伪全面推行经济统制政策止是齐齐哈尔城市相对衰落的历史时期。

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The industry of Puppet Manchukuo is an important part of the Northeast Modern Economic History, so the research on it is essential for the research on industrialization process of the Northeast.

伪满工业是近代东北经济史的一个重要组成部分，对其进行研究也是研究东北工业化进程不可缺少的内容。

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