The effect of microwave pretreatment on impact crushing of lead-zinc oreYulong Liu, Dexin Ding, Wenguang Chen, Nan Hu, Lingling Wu, Lin Hu, Qiucai Zhang, Zhijun Zhang, Feng Li, Xilong Xue, Zhaopeng Li, Guicheng He and Qing YuMetall. Res. Technol., 118 5 (2021) 501DOI: https://doi.org/10.1051/metal/2021055