问题:电磁流量计的电磁传感器主要有测量管组件、励磁系统、()以及抗干扰...
Thursday, September 15, 2022
问题:下列()不属于电弧焊。A、埋弧自动焊B、埋弧半自动焊C、电渣焊D、气体保护焊...
Wednesday, November 22, 2023
问题:设备防雷接地的基本原理是()。A、引雷入地B、设备吸收C、屏蔽D、避雷...
Wednesday, November 22, 2023
Thursday, September 15, 2022
问题:设备故障诊断技术的发展历程为感性阶段、()、()、人工智能和网络...
Thursday, September 15, 2022
问题:清洁光纤接头时,一手拿着清洁棉球,在用粘有无水酒精的棉球顺着()...
Monday, September 12, 2022
Thursday, April 13, 2023
问题:对于简单低值、利用率低、维修性好或修理不复杂且出现故障停机不影响...
Monday, September 12, 2022
问题:从事危险作业必须两人以上,并采取有效地防护措施后方可进行,严禁单...
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:在LNG加注站中,当储罐压力升高,紧急情况下可以通过()来放空,...
Thursday, September 15, 2022
问题:齿轮的啮合刚度变化曲线可看出直齿轮刚度变化较陡,斜齿轮和人字齿轮...
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:自重式防火阀要注意叶片的上下气流()标志,不得倒置。...
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:在用35公斤手推式灭火器进行灭火操作时,拿起喷枪应视火势距火源(...
Thursday, September 15, 2022
问题:正压式空气呼吸器主要由高压气瓶、背具、减压器、空气供给阀和()五...
Thursday, September 15, 2022
问题:仓库内外物资要()实物盘点一次,做到材料明细账、材料盘点表三项符合,并定期向部门领导报送库存材料盘存清单。A、每年B、每季度C、每半年...
Thursday, June 8, 2023
Thursday, September 15, 2022