Electric force curves的用法和樣例：
例句
- Hence only one line of force can pass through each point of the field.
因此電場中任一點只能通過一條電力線。 - As in ordinary MR, the field produces an additional force on the charges, deflecting them like a plane in a crosswind, so that they travel at an angle to the electric field lines.
和一般的磁阻一樣，磁場對電荷施加另外一個力，使得它們如受到側風的飛機一樣轉向，如此一來，電荷飛行的方向會和電力線成一個角度。
