带式输送机一般都装有()可逆自动调心托辊和()自动调心托辊。...
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
鼠笼式电动机允许在热状态下起动()。A、1次;B、2次;C、3次;D、4次。...
Monday, December 5, 2022
Friday, September 16, 2022
Saturday, October 8, 2022
除焦时工作人员必须穿着防烫伤的()、(),戴防烫伤的手套和()。...
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
犁煤器是由()结构组成。A、卸煤托板;B、刮板;C、刮板支架;D、操动机构。...
Tuesday, January 24, 2023
Friday, September 16, 2022
用()拉合隔离开关(刀闸)或经传动机构拉合隔离开关(刀闸)和断路...
Friday, September 16, 2022
Wednesday, April 24, 2024
Wednesday, April 3, 2024
Friday, September 16, 2022
把煤加热到一定温度时,煤中的碳氢化合物、氧化碳、碳化氢、氢气以及氮气等就会以气体形式逸出,这些气态物质就称为煤的()。...
Wednesday, April 3, 2024
污水泵停运时,先关闭入出阀门,然后按下停止按钮,水泵停转。()...
Friday, September 16, 2022
监盘时看到某输煤皮带机电流过大或电流摆动大而跳闸时,不应再强行启...
Friday, September 16, 2022
叶轮给煤机叶轮传动不平稳、晃动的原因是什么?如何解决?...
Friday, September 16, 2022
带式输送机的托辊倾角由20°提高到30°,其输送量可提高()...
Friday, September 16, 2022