On the basis of the data measured in similar mine, the protection problems are discussed. The technical measures and proposals are presented.
根据类似矿井通风防护实测资料，讨论了相应的防护问题，并提出了控制的技术措施和建议。
On the basis of the data measured in similar mine, the protection problems are discussed. The technical measures and proposals are presented.
根据类似矿井通风防护实测资料，讨论了相应的防护问题，并提出了控制的技术措施和建议。
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