Wednesday, January 25, 2023
问题:填空题影响采煤方法选择的因素主要有:();();()和矿井经济效益。
Sunday, October 22, 2023
Sunday, September 18, 2022
Tuesday, April 9, 2024
问题:填空题采煤工作面循环作业图表主要包括:();();()和工作面布置图。
Thursday, September 22, 2022
Saturday, June 24, 2023
Thursday, September 22, 2022
Wednesday, September 21, 2022
问题:填空题分层平巷和区段集中平巷之间的联系方式一般有();()和;()三种。
Friday, September 16, 2022
问题:问答题伪斜柔性掩护支架采煤法的的特点、评价和适用条件是什么?
Thursday, February 29, 2024
Saturday, April 8, 2023
问题:单选题空场法的矿块回采顺序()A 先采矿房后采矿柱;B 先采矿柱后采矿房;C 矿房与矿柱同时回采;D 二者回采顺序无关紧要
Monday, October 24, 2022
Wednesday, September 21, 2022
Tuesday, May 7, 2024
Saturday, January 27, 2024
问题:填空题竖井井底车场形式按使用的提升设备分类:();();()。
Tuesday, May 7, 2024
Friday, March 29, 2024
Tuesday, May 7, 2024
Saturday, January 27, 2024
Friday, March 29, 2024