相线(1ine conductor)
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1、The resistance of a conductor varies (
The resistance of a conductor varies ()Adirectly as its length and inversely as its cross-sectional areaBinversely as its length and directly ...
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中性线(neutral conductor)
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相线与相线之间的电压称为()。A线电压B相电压C端电压
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三相交流电,相线与相线之间的电压是().A110VB220C380VD450V
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5、相线与相线之间的电压成为(),相线与零线之间的电压成为()。
相线与相线之间的电压成为(),相线与零线之间的电压成为()。
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联结线(bonding conductor)