TOOL FOR UNDERGROUND SET-POINT SLEEVE EXTRACTION AND METHOD FOR USING THE SAME von WANG, JIE, YAN, XINGWEI, YANG, BINYU, ZHANG, HONGBIN, LIU, XUEQIAO, ZHAO, DANFENG, HU, XIANYU, YU, HUIMING, MA, HAIYU, LIU, XIN, WU, MINGZE, LIU, JIHAI, MENG, GANG, WEI, HOUCHAO, AN, JIANING, XING, DELI, ZHANG, DEPEI, LIU, MINGKUN, AN, BAIZHENG, YAN, PENGAO, LIU, JIANYONG, YANG, YANG, MENG, FANJU

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TOOL FOR UNDERGROUND SET-POINT SLEEVE EXTRACTION AND METHOD FOR USING THE SAME von WANG, JIE, YAN, XINGWEI, YANG, BINYU, ZHANG, HONGBIN, LIU, XUEQIAO, ZHAO, DANFENG, HU, XIANYU, YU, HUIMING, MA, HAIYU, LIU, XIN, WU, MINGZE, LIU, JIHAI, MENG, GANG, WEI, HOUCHAO, AN, JIANING, XING, DELI, ZHANG, DEPEI, LIU, MINGKUN, AN, BAIZHENG, YAN, PENGAO, LIU, JIANYONG, YANG, YANG, MENG, FANJU

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Reverse buckling device von MA HAIYU, WANG BINGYONG, WANG JIE, JIN HONGTAO, LI MANYIN, LIU JIANYONG, SUN JIANSHEN, ZHANG HONGBIN, LIU JIHAI, YAN PENGAO, XI NAIMAO, ZHAO JIASHEN

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Workover blowout control device von LIU XINLI, MI BAOSHAN, YAN YUNXIANG, HUANG YUENAN, JIA HAIWEI, DIAO ZHENBIN, CHEN CHENG, YAN PENGAO

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Milling tool used for oil well or water well von WANG JIANUAN, WANG JIE, JIN HONGTAO, SU YUQI, SUN GUHUA, LIU JIANYONG, LIU JIHAI, XI NAIMAO, LI FAZHI, WANG JIAN, JI JIANHUA, SHEN JUN, ZHANG QING, YANG WENXUE, YAN PENGAO

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Grinding and milling tool for oil well or water well and using method thereof von WANG JIANUAN, WANG JIE, JIN HONGTAO, SU YUQI, SUN GUHUA, LIU JIANYONG, LIU JIHAI, XI NAIMAO, LI FAZHI, WANG JIAN, JI JIANHUA, SHEN JUN, ZHANG QING, YANG WENXUE, YAN PENGAO

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Retreating drill rod fishing socket von WANG HUAQIAO, MA HAIYU, XIAO KE, WANG JIE, LI JUN, JIN HONGTAO, SU YUQI, GONG XIAOBING, LIU JIANYONG, SUN JIANSHEN, LIU HONGZE, XI NAIMAO, WANG ZHIKANG, WANG JIAN, ZHAO SHUAI, YAN PENGAO

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Hydraulic power inverse-buckling device von WANG JIANUAN, WANG JIE, LIU YONGXIA, JIN HONGTAO, SU YUQI, SUN GUHUA, LIU JIANYONG, GU SHUREN, ZHANG YUCHEN, LIU JIHAI, XI NAIMAO, LI FAZHI, QIU YANHUI, WANG JIAN, JI JIANHUA, SHEN JUN, WANG YASHI, ZHANG QING, JIA GUIMIN, YANG WENXUE, YAN PENGAO

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Hydraulic power reversing device von WANG JIANUAN, WANG JIE, LIU YONGXIA, JIN HONGTAO, SU YUQI, SUN GUHUA, LIU JIANYONG, GU SHUREN, ZHANG YUCHEN, LIU JIHAI, XI NAIMAO, LI FAZHI, QIU YANHUI, WANG JIAN, JI JIANHUA, SHEN JUN, WANG YASHI, ZHANG QING, JIA GUIMIN, YANG WENXUE, YAN PENGAO

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Sleeve hoop positioner von ZHANG DEPEI, WANG LEI, LIU XIN, WANG JIE, WU MINGZE, YAN XINGWEI, WANG SENHOU, WEI HOUCHAO, YAN PENG'AO, AN JIANING, ZHANG HONGBIN

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A Fluorine-Free Superhydrophobic Cotton Fabric Prepared by a Green and Energy-Saving Method Is Used for Long-Lasting and Efficient Oil–Water Separation von Xia, Shuangshuang, Yu, Zongxue, Tang, Junlei, Chen, Yan, Zhang, Xiuzhu, Guo, Shijie, Yu, Pengao

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Bonnet bracing piece and car von FAN WEIDONG, ZHANG YAN, XU PENGAO

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课后服务质量提升的困境及解决路径——来自美国的经验与启示 von 曾家延, 彭傲楠

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幼儿园普惠性课后托管服务:必要性与影响分析——来自发达国家相关经验与研究的启示 von 彭傲楠, 曾家延

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