| 摘要 |
<p>A train, in particular a commuter train comprising several carriages, is divided into two parts. A first unit starts at a particular time and stops at every station until it is close to the inner city or the airport. The second part starts later and stops for a first time at the station were the other unit is already waiting to be coupled to the second train. Both train parts continue the journey to the final destination and stop together at every station in the city.a.</p> |
