The last thing you want in the face of an advancing zombie horde is a blown fuel sensor.
面对一群不断前进的僵尸，你最不想看到的就是一个爆炸的燃料传感器。
A sensor channels the light signal along an optical fibre.
传感器沿光导纤维输送光信号。
Sensors record each movement and send it by an ankle transmitter to a smart phone.
传感器记录下每个动作，然后通过脚踝传感器发送到智能手机上。
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