问题:斗轮机堆料运行时,门座漏斗电动推杆应打到(),取料作业时,门座漏...
Tuesday, September 13, 2022
Friday, September 16, 2022
Friday, September 16, 2022
问题:控制电缆与动力电缆分开敷设,并在()之下,采取防火措施。...
Friday, September 16, 2022
Friday, September 16, 2022
问题: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
问题:从形式上说环境管理体系文件的编制应体现哪几个方面的要求?...
Friday, September 16, 2022
Friday, September 16, 2022
问题:65YU-2-50-25型泵的叶轮与泵体之间的间隙应保持在1.5-2mm左右使泵高效运行。()...
Monday, December 5, 2022
Tuesday, September 13, 2022
Thursday, January 12, 2023
Friday, September 16, 2022
问题:各皮带机的启动间隔至少为上级皮带启动电流回落到正常电流后()。...
Friday, September 16, 2022
Friday, September 16, 2022
问题:轴承发热及损坏的主要原因是轴承内润滑油不够或脏污、油内有灰砂杂质...
Friday, September 16, 2022
Monday, November 14, 2022
问题:输煤皮带机的特点有()。A、生产效率高;B、使用寿命长;C、噪声小,结构简单;D、运行费用低,维修方便。...
Monday, December 5, 2022
Friday, September 16, 2022
Friday, September 16, 2022