At __________________ should exist correct mains voltage.
A: the transformer
B: connecting transformer
C: disconnecting transformer
D: pre-disconnecting transformer
A: the transformer
B: connecting transformer
C: disconnecting transformer
D: pre-disconnecting transformer
举一反三
- At __________________ should exist correct mains voltage. A: the transforme B: connecting transforme C: disconnecting transforme D: pre-disconnecting transforme
- Thefansmustbeexpectingthe_____(续集)tothemovie“Transformer”.
- what are the main components of a transformer?
- At __________________ should exist correct mains voltage.
- The connection of the inner bridge is suitable for ( ). A: The circuit is short and the transformer needs to be switched frequently B: The line is long, the transformer does not need to often switch and occasions C: There are many lines and only two transformers D: Only two outgoing lines, the number of transformer more occasions