| 例句 |
Before the digital revolution, mankind relied upon analog signals to communicate with one another.在数位革命之前，人类的通讯多半是靠类比的讯号。As fiber optics are immune to electromagnetic interference, they are better for signal transmission than wire cables.光纤因不会受到电磁波的干扰，所以比一般的金属线更适于传达讯号。This new pay-TV channel sends signals via satellite to cable companies.这个新的付费电视频道通过卫星把讯号发送到有线电视公司。 |