This may be helpful to the design, construction and management of underground works.
可供地下工程设计、施工和使用单位参考。
Under this program, it is the construction of underground works and provide a theoretical basis.
为此方案下井巷工程的是否建设提供理论依据。
Under this program, it is the construction of underground works and provide a theoretical basis.
为此方案下井巷工程的是否建设提供理论依据。
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