Design studies on hydraulic lift bottom bracket and the elapse
Hydraulic lift the bottom bracket and Elapse of rational design or not,the decision to promote the direct effect scraper,related to mechanized mining face is working.In this paper,ZY6000/20/40D shield type hydraulic support,for example,lift the bottom and Elapse to analyze the institutional structure type and the forces,and calculated their strength.
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万方数据
维普
