CN202855176U - 组件式采区巷道布置及透水灾害模拟模型 - Google Patents
组件式采区巷道布置及透水灾害模拟模型 Download PDFInfo
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Assignee: Harbin Yuanda Communication Technology Service Co., Ltd. Assignor: Chen Haibo|Yin Xiaojun|Lin Jingxiang Contract record no.: 2013230000848 Denomination of utility model: Assembly type mining area roadway layout and water gushing-out disaster simulation model Granted publication date: 20130403 License type: Exclusive License Record date: 20130522 |
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