道岔主线 main line of turnout

[名词解释] 道岔侧线 siding of turnout

[名词解释] 道岔中心 center of turnout

[名词解释] 道岔号数 turnout number

[名词解释] 对开道岔 symmetrical turnout

[名词解释] 单车道岔 simple turnout

[名词解释] 道岔导曲线 lead curve of turnout

[名词解释] 三开道岔 three-throw turnout

[名词解释] 正线 main line

[名词解释] 线路别疏解 untwine of main line

[单选题]阅读以下程序 include void main( ) { char line[10]; cin>>line; cout<