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Study on mining pressure monitoring in 1208 air roadway recovering mining in Sima Mine
Song Husen1, Li Jinhua1,Li Xiaopeng2,Liang Aoxiang2,
 1. Shanxi Sima Coal Industry Corporation Ltd., Changzhi 046000, China; 2. School of Mining, China University of Mining and Technology, Xuzhou 221000, China


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