Myers was wearing hearing aids which contain the inexpensive little magnetic sensor.

大卫所戴的助听器里面有成本低廉的小型磁传感器。

Let's move on to the other type of scroll wheel, the magnetic rotary position sensor.

让我们继续讨论另一种滚轮，即磁性旋转位置传感器。

Scroll wheels commonly use either optical rotary  encoders or magnetic rotary position sensors in order to measure rotational motion.

滚轮通常使用光学旋转编码器或磁性旋转位置传感器来测量旋转运动。

Peter Hore is a physical chemist on that team at the University of Oxford in the U.K. Hore: We know the magnetic sensors are in the bird's eyes, in their retinas.

Peter Hore 是英国牛津大学该团队的一名物理化学家。Hore：我们知道磁传感器存在于鸟类的眼睛和视网膜中。