DIN 21917:2023-10 采矿计划地层和地面移动/注：发布日期 2023-09-01*旨在替代 DIN 21917 (1999-02Mine pl

匿名 发表于 2023-12-21 17:21:34 |阅读模式

DIN 21917:2023-10 采矿计划地层和地面移动/注：发布日期 2023-09-01*旨在替代 DIN 21917 (1999-02Mine plans - Strata and ground movements / Note: Date of issue 2023-09-01*Intended as replacement for DIN 21917 (1999-02).

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DIN 21917:2023-10 采矿计划地层和地面移动/注：发布日期 2023-09-01*旨在替代 DIN 21917 (1999-02Mine pl

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DIN 21917:2023-10 采矿计划 地层和地面移动/注：发布日期 2023-09-01*旨在替代 DIN 21917 (1999-02Mine pl

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DIN 21917:2023-10 采矿计划地层和地面移动/注：发布日期 2023-09-01*旨在替代 DIN 21917 (1999-02Mine pl