应采用36伏照明的场所为() ["—般场所的移动式局部照明和手提行灯","机床上的局部照明","危险场所中不便于工作的狭窄地点","特别潮湿场所","危险场所中的安装高度低于2.5米以下的灯具"]
在申请办理许可、核准期间,特种设备安全监督管理部门发现申请人未经许可从事特种设备相应活动或者伪造许可、核准证书的,不予受理或者不予许可、核准,并在()内不再受理其新的许可、核准申请。 ["半年","一年","三年","五年"]
简述病症类型的锈状物。
Before liquid can flow into a pump, the air in the suction line must be () sufficiently to cause the liquid to flow into the suction chamber. ["filled","evacuated","compressed","charged"]
应采用12伏照明的场所为() ["正常场所的手提行灯","危险场所中不便于工作的狭窄地点","工作人员接触着接地的大块金属面或金属构架上","特别潮湿场所","室内危险场所低于2.5米以下的灯具"]
自动阀发生故障对制氧机生产有什么影响,如何判断自动阀故障?