问题:“管生产必须管安全”,“谁主管谁负责”是安全管理的基本原则。...
Sunday, June 25, 2023
Monday, October 2, 2023
Tuesday, September 13, 2022
问题:简述发电标准煤耗(正平衡计算)的过程,及简要分析影响发电煤耗的因...
Friday, September 16, 2022
Saturday, May 13, 2023
问题:输送带是胶带运输机中最重要也是最昂贵的部件,其价格约占输送机总投资的()左右。A、25~50%B、5~10%C、90%...
Sunday, March 17, 2024
Friday, September 16, 2022
Friday, September 16, 2022
问题:碎煤机启动后,机械部分转动吃力或不转,电流最大而不返回,原因是?...
Friday, September 16, 2022
Friday, September 16, 2022
Saturday, May 13, 2023
问题:某胶带运输机驱动电动机的转速n为1450转/分,主动滚筒直径D为...
Friday, September 16, 2022
问题:煤中碳氢测定中,使用碱石棉是为了用来吸收燃烧生成的()。A、二氧化硫;B、三氧化硫;C、二氧化碳;D、二氧化氮。...
Saturday, May 13, 2023
Friday, September 16, 2022
Tuesday, September 13, 2022
Friday, September 16, 2022
Saturday, May 13, 2023
Friday, September 16, 2022
问题:火力发电厂厂部第一安全责任者是()。A、厂领导集体B、党委书记C、工会主席D、厂长...
Thursday, March 7, 2024