Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
问题:可能引起减速机振动的原因是()。A、电机故障;B、联轴器故障;C、油位过低;D、齿轮掉齿。
Friday, September 16, 2022
Monday, July 31, 2023
Monday, August 21, 2023
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
问题:DQ8030斗轮机取料能力为()t/h。A、800;B、1000;C、1200;D、1500。
Monday, December 25, 2023
Friday, September 16, 2022
Thursday, May 16, 2024
Friday, September 16, 2022
问题:论述引起电动机两相运行的现象、原因各是什么?如何处理?
Monday, March 6, 2023
问题:当空气中煤粉尘浓度达到300~400g/m3时,爆炸力最大。
Friday, September 16, 2022
Friday, September 16, 2022
问题:程控值班员应重点监视:皮带电动机运行电流的监视、各种取煤设备和给煤设备的的监视、()、碎煤机运行信号的监视、()、除铁器运行情况的监视。
Friday, September 16, 2022
问题:煤刮板机在主要零部件链轮装在轴上链轮(两边)相应的齿形偏移不大于()mm。A、1;B、2;C、0.5;D、0.1。
Friday, September 15, 2023
Friday, September 16, 2022