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In-situ generation, decomposition and permeability measurement integrated device for natural gas hydrate sediment, has insulating layer formed on upper part of piston, and cooling cover cylinder sleeved in outer tube. 专利
申请日期: 2012-01-01, 公开日期: 2012-05-09
作者:  LI Y WANG R LIU W SONG Y YU F NIE X
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/18
Improvements in and relating to semiconductor recombination radiation sources 专利
专利号: GB1093402A, 申请日期: 1967-11-29, 公开日期: 1967-11-29
作者:  -
收藏  |  浏览/下载:18/0  |  提交时间:2019/12/23


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