英语词汇“tie line”是什么意思，“tie line”的读音、用法及例句翻译-烛光网

词汇	tie line
释义	tie linen.（名词） A communications link between extensions of a private telephone system.电话直接连接线：一个私人电话系统两个分机之间的通信连接线 A connection between systems, such as electrical power or communications systems.连接线：如电力系统或通信系统间的连接
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