+ 代表在作学术报估十 全体:委员会议t 动水沌浆模型试验表演本刊编辑部摄影中国煤炭学会矿井建设专业委员会第一次全体委员会议暨注浆学术会议活动剪影@本刊编辑部 + Representatives are making an academic report on the evaluation of all ten: committee meetings and conferences and training experiments in the editorial department of the Editorial Department of the China Coal Society, the first meeting of the committee of the whole committee and cum injection academic conference activities @ Editorial Office