///2
Jump to navigation
Jump to search
(Created page with "== 介绍 == thumb|闭塞区间可防止多列车进入同一交叉路口导致相撞") |
No edit summary |
||
| Line 1: | Line 1: | ||
== 介绍 == | == 介绍 == | ||
[[File:Mutexworking.png|thumb| | [[File:Mutexworking.png|thumb|闭塞区间可防止多列车进入同一交叉路口导致相撞。]] | ||