derived current的用法和樣例：
例句
- It is important to keep the bridge voltage low in order to avoid a self-heating of the measuring element by the bridge current.
保持電橋低電壓很重要，以避免橋路電流測量元件自熱。 - For this purpose, the heating wires of each two measurement and reference chambers are switched to form a Whetstone bridge, which is heated by means of a bridge current.
在檢測器內有兩對加熱的熱絲即一對測量臂和一對參比臂，當通入橋路電流時，形成惠斯登電橋。
