n.正弦曲线；[解]窦状隙；窦状小管
Because the Faraday rotation angle increases periodically with the current measured,only a monotone region of the sinusoid could be used and the measurement range is narrowed. 由于法拉第旋转角随被测电流周期性增大，测量时只能利用正弦曲线单调变化的部分，因此限制了电流的测量范围。
adj.正弦曲线；窦状隙；窦状小管
