变压器中性点接地刀闸切换原则是什么？
快速搜索不能单独查询的条件是（） ["证件号码","客户姓名","客户帐号","手机号"]
When restarting a heavy fuel diesel engine that has been stopped for some time, the engine should（） ["increase the starting air pressure","use a higher than normal cranking speed","increase the fuel injection pressure","use a fuel having a lower ignition temperature"]
织物整理工作的目的和任务是什么？织物整理的工艺过程一般须经过哪些工序？各工序的目的和任务是什么？
忙时试呼次数BHCA估算公式中的固有开销a主要来自（）。 ["时钟级程序","基本级程序","故障级程序","运行级程序"]
向空载变压器充电时，应注意什么？
