具备掉电数据记忆功能的水位传感器有()。 ["A、JB-4095水位传感器","B、WFH-2型水位传感器","C、细井式水位计","D、JD-4085水位传感器"]
诺西BSC3i中的BCSU的冗余方式是:() ["A、2N","B、N+1/替代型","C、N+1/负荷分担型","D、无备份"]
()是把交流电压变高或变低的电气设备。 ["A、变电所","B、镇流器","C、配电所","D、变压器"]
一般把()及以上的电压称为高压。 ["A、110V","B、220V","C、380V","D、1Kv"]
碗米坡水情测报系统采用的水位计有()。 ["A、JB-4095水位传感器","B、NARI9662.LG","C、细井式水位计","D、JD-4085水位传感器"]
250MW机组初压调整器的试验与调整?