这种点的集合被称为等位面.The set of points is called a level surface.表面本身是一等位面.The surface itself is an equipotential.在等位面与电力线的每个交点, 两者是垂直的.At each crossing of an equipotential and a field line, the two are perpendicular....
I had an intuition that something awful was about to happen.我直觉感到要出乱子了。I had an intuition that I would find you.我有一种直觉,我能找到你们.He knew this thing by intuition.他凭直觉了解这件事....