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The analysis of partial short supporting effect is studied on the basis of elastic and viscoelastic theory.
局部弱支护又是巷道支护工程中的常见现象,也是理论上缺乏深入研究的问题。
youdao
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The analysis of partial short supporting effect is studied on the basis of elastic and viscoelastic theory.
局部弱支护又是巷道支护工程中的常见现象,也是理论上缺乏深入研究的问题。
youdao