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Performance of flyash bolter and its effectiveness analysis in power plants
粉煤灰分选设备性能及其在电厂中应用的效益分析
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A theoretical and experimental study of the pneumatic gear motor in roof bolter
气动锚杆钻机齿轮马达特性的理论分析与实验研究
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5、
The Research on Preventing Chinese Cabbage from Early Bolter in Northwest Hebei Province
冀西北高寒区大白菜防春化栽培技术研究
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