英文:It's a conduit enclosing insulated electric wires.
中文:这是包电线的导管。
英文:A structural unit employed in cable, consisting of four separately insulated conductors twisted together.
中文:电缆使用的一种结构形式,它由四根各自绝缘的导线相互绞合而成。
英文:A type of transmission medium consisting of two insulated wire twisted together to improve its immunity to interference from other(stray) electrical signals that may otherwise corrupt the signal being transmitted.
添加新评论