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为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7<
Effects of Network Closure on Cooperative Innovation: Evidence from Dongying's Petroleum Equipm
【摘 要】
：
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
【机 构】
：
Institute of Information, Shanghai Academy of Social Sciences, Shanghai 200235, China
【出 处】
：
黑龙江科技学院学报
【发表日期】
：
2019年3期
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