Wednesday, September 21, 2022
Friday, September 16, 2022
Saturday, February 24, 2024
Thursday, September 15, 2022
Friday, September 16, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Sunday, September 18, 2022
问题:金属及金属结构物的破碎解体应在何种场地进行?同时还应遵守哪些规定?...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:单选题露天矿临近边坡的爆破法有()。A 缓冲爆破B 预裂爆破C 光面爆破D 以上都是...
Tuesday, September 19, 2023
Saturday, October 15, 2022
问题:金属及金属结构的破碎解体应在何种场地进行?同时还应遵守哪些规定?...
Thursday, September 22, 2022
问题:影响爆破效果的岩石物理性质主要有:()和风化程度等。...
Thursday, September 22, 2022
问题:民用爆炸物品储存库报警、视频监控应具有备用电源,要求对控制台设备视频部分供电不小于()小时,报警部分供电不小于()小时。...
Thursday, September 22, 2022
Wednesday, September 21, 2022
问题:判断题梯恩梯是一种单质猛炸药,具有良好的爆轰性能。A 对B 错...
Monday, March 20, 2023