1. a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
行业词典
计算机： = Channel Unit,信道[通道]装置; = Close-Up, 闭合，接通; = Computing Unit, 计算装置; = Control Unit, 控制器[单元]; = Counting Unit, 计数单元，计数器；