复线铁路 meaning in English

multitrack railways

In recent years , with the development of the basic establishment , especially means of transportation ( railway , highway , etc . ) , the engineering phenomena that new line ( such as double - track railway , high speed railway , expressway , etc . ) is built close to existing line ( such as railway , highway , etc . ) appears . the size is larger and lager , and the space between is closer and closer
近年来，随着基础设施，尤其是交通设施(铁路、公路等)建设的发展，大量地出现了在既有线(如铁路或公路等)旁修建新线(如复线铁路、高速铁路、高等级或高速公路等)等工程现象，且规模越来越大，距离越来越近。