点火线圈附加电阻当温度为200C时,阻值约为1.25~1.40Ω,当温度筑到5000C时,阻值约为()Ω以上。
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无岔区段两侧不能同时往里调车,在6502电气集中ZJ励磁电路中是通过照查()的ZJ后接点实现的。
You are attempting to parallel two AC generators and the synchroscope pointer is revolving in the slow directionThis indicates that the frequency of the incoming machine is ().
A. higher than the bus frequency
B. lower than the bus freouencv
C. the same as the bus frequency but out of phase with it
D. the same as the bus frequency, and the circuit breaker may be closed at any pointer positio
下列需在原挂失受理网点办理的有()。
A. 挂失补发
B. 挂失销户
C. 密码重置
D. 挂失撤销凭证
企业在确定信用标准时可以对不同的客户采取不同的标准。
A. 正确
B. 错误