1. 三個(gè)二進(jìn)制位或三個(gè)脈沖組成的一種組，通常按時(shí)間順序出現(xiàn)在一根導(dǎo)線上或同時(shí)出現(xiàn)在三根導(dǎo)線上。
   A group of three bits or three pulses, usually in sequence on one wire or simultaneously on three wires.
2. 一種能傳輸信號(hào)的信道或導(dǎo)線。
   A channel or conductor capable of transmitting signals.
3. 由兩根外皮絕緣的導(dǎo)線扭在一起組成的一種類型的傳輸媒體，扭在一起是為提高對(duì)可能破壞被傳輸信號(hào)的其它（雜散）電信號(hào)的抗擾度。
   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.
4. 單線的僅有或用一根絲，例如纖維或導(dǎo)線
   Having or using only one filament, such as a thread or wire.

導(dǎo)的英語(yǔ)翻譯：

線的英語(yǔ)翻譯：