设备或容器在外加高压作用下,经导电部分泄漏的电流称为泄漏电流。()
参考答案:错
The organizing committee announces that tickets at the Grand Stadium are limited and will be _______ to those who apply first.
A.advocated
B.allocated
C.approved
D.acquired
直流电动机转速不正常,可能的故障原因是()。
A、电刷位置不对
B、启动电流太小
C、电机绝缘老化
D、引出线碰壳