【单选题】The correct phase rotation of a three-phase alternator can be checked with a ______.
【单选题】The correct phase rotation of a three-phase alternator can be checked with a .
【简答题】The three voltages that have the same amplitude and frequency ω and are out of phase with each other by 120 ° are said to be .A. balanced
three-phase voltages B. unbalanced
three-phase voltages C. uns...
【单选题】In a three-phase, open-delta connected transformer, the line current is equal to _______.
B.
three times the phase current
C.
the sum of any two phase currents
D.
the difference of any two phase current
【单选题】尺寸注释属于( )类图元,用来标注构件的空间尺寸。
【单选题】在接待政务型团队的过程中,下列哪项做法是不符合服务要求的( ).
D.
以团队中的主要领导为服务核心,适当照顾其他团员
【简答题】若 p 是素数,则同余方程 x p - 1 o 1( mod p ) 的解数为
【单选题】In a three-phase circuit, the phase voltages are _____.
【单选题】在接待政务型团队的过程中,下列哪项做法是不符合服务要求的( )。
D.
以团队中的主要领导为服务核心,适当照顾其他团员
【单选题】The three-phase source and the three-phase load have possible connections.