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Grafted polymer proton exchange membrane, comprises polymer film containing chloromethylated group as main polymer chain, aromatic ring structure as backbone of side chains, and sulfonated polyphenylene sulfide side chain. 专利
申请日期: 2015-01-01, 公开日期: 2015-08-12
作者:  LI Y ZHANG F
收藏  |  浏览/下载:5/0  |  提交时间:2019/12/09
Wireless node network based signal collecting and monitoring system for use in coal bed gas production well, has electronic system connected with scene terminal sub-system and wireless backbone network sub-system. 专利
申请日期: 2014-01-01, 公开日期: 2014-03-26
作者:  HU X ZHAO M LI Y ZHAO W CHEN S PAN
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/11


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