permanently connected造句怎么写
- 造句
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A logic family that may be in one of three states rather than the usual two-high,low,or high the high impedance state,output voltage is unaltered. Logic in a high impedance state may be easily and permanently connected to a bus.
These traction motors with Class H insulation are permanently connected in matic field weakening is provided and multiple-unit control is fitted.
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