Propaganda and ideological work in ethnic rural areas is confronted with mang problems in terms of understanding, investment, position construction, propaganda means and the quality of ranks of cadres.
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fixed position construction 定位作图
position construction parameter 位置结构参数
leading position in ship construction 在造船方面的领先地位
all-position automatic pipeline construction equipment 全位置自动化管道施工设备
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