Sunday, June 2, 2024
Sunday, June 2, 2024
Monday, September 12, 2022
划分各类型块段,原则上以达到相应控制程度的勘查线、煤层底板等高线...
Thursday, September 15, 2022
Tuesday, October 25, 2022
Monday, September 12, 2022
瓦斯绝大部分以自由的气体状态游离于煤体和围岩的()、()和()。...
Wednesday, May 1, 2024
Thursday, September 15, 2022
工作面开出后,应在()天内按要求提出该工作面地质说明书,经矿总工...
Monday, September 12, 2022
中厚以上煤层,在回采过程中,必须配备()定期进行行探煤厚工作,并...
Monday, September 12, 2022
抽油机井动态控制图中的()区表示该区域的井流压较高但泵效低,表明...
Thursday, September 15, 2022
Wednesday, January 31, 2024
对各类断层,要按《矿井水文地质规程》的要求留设();巷道必须穿过断层时,必须探明断层的位置、性质、赋水状况,采取()、()和()等相应的安全技术防治措施,必要时预先建筑防水闸门(墙)。...
Tuesday, January 3, 2023
水文地质补充勘探的手段包括:()、()、()、()、()和()五项。...
Monday, September 25, 2023
Tuesday, June 13, 2023
Monday, January 2, 2023
Monday, September 12, 2022
各生产矿井在安全情况允许条件下,必须回收即将报废立井的()。...
Thursday, September 15, 2022
Thursday, September 15, 2022
煤的液化是指煤在()和()作用下,通入氢气,使之变成液体燃料的过程。...
Thursday, April 11, 2024