求翻译：当输入电压U+加在b端和公共端之间，U与U+两者的实际方向相对公共端恰好相同。为了区别起见，a端和b 端分别用"-"和"+"号标出，但不要将它们误认为电压参考方向的正负极性。是什么意思？

When the input voltage U + added to the b-side and between the public side, U and U + relative to the actual direction of both the public side is exactly the same. For the sake of distinction, a side and b-side were used to "-" and "+" sign marked, but do not mistake them the direction of the positi

When the input voltage U + plus in B, port and public port between U U + two persons with a practical orientation coincide relatively public ends. In order to distinguish between a-side and b-side, with " -" respectively " +" and marked, but they must not be mistaken for polarity voltage reference d

Transports puts like the chart to have two input end a (opposition input end), b (synchronism input end) and out-port o.Also is called separately the reverse input end non-reverse input end and the out-port.When voltage U- adds in a end and the public end (the public end is the voltage for the zero

When the input voltage U+ add on the b side and between the public side, u actual direction relative to the U+ between the public side of exactly the same. In order to distinguish, the a-side and b side using "-" and "+" mark, but they are not mistaken for positive and negative polarity of the volta

When the input voltage U+ add on the b side and between the public side, u actual direction relative to the U+ between the public side of exactly the same. In order to distinguish, the a-side and b side using "-" and "+" mark, but they are not mistaken for positive and negative polarity of the volta