Monday, September 12, 2022
问题:()的立法目的是为了保障矿山生产安全,防止矿山事故,保护矿山职工的人身安全,促进采矿工业健康发展。...
Tuesday, January 23, 2024
问题:《煤矿安全规程规定》平衡式钢丝绳的使用期限不得超过()年。...
Thursday, September 15, 2022
问题:井下发生火灾,位于火源进风侧的人员,应迎着新鲜风流撤退...
Monday, September 12, 2022
问题:滚筒上缠绕2层或2层以上钢丝绳时,钢丝绳由下层转到上层的临界段必...
Thursday, September 15, 2022
问题:定量斗箱装载设备具有结构简单,实现定量装载,有利于提升机操纵,(...
Thursday, September 15, 2022
问题:摩擦轮式提升机用钢丝绳,也应像缠绕式提升机用的钢丝绳一样,按《煤...
Thursday, September 15, 2022
Monday, September 12, 2022
Monday, September 12, 2022
Thursday, September 15, 2022
Monday, September 12, 2022
Monday, September 12, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:试述KGS1、KGS2、SDZ-1-工作闸制动手柄连锁触点的作用...
Thursday, September 15, 2022
问题:中途停机难以判别方向时,主提升机操作工可以采取的措施有()。...
Thursday, September 15, 2022
问题:提升机在启动和运行过程中,司机应随时注意哪些情况?...
Thursday, September 15, 2022
Monday, September 12, 2022
Thursday, September 15, 2022