However, the modulation - demodulation of ultraviolet and voice transmission are the key technologies.然而, 紫外光通信的 调制解调技术 以及语音传输是整个系统的关键难点.FM receiver through demodulation , the frequency signals into sound signals.调频接收机通过...
As worms are bred in a stagnant pool, so are evil thoughts in idleness.虫蛆在死水中孵化,邪念在懒惰中养成。They were digging up worms to use for bait.他们正在挖蚯蚓作鱼饵。birds looking for worms觅食蠕虫的鸟...carriers of disease such as mosquitoes and wo...