The main factors which affect the pressure wave when two high-speed trains meet:
A: The speed of the meeting trains
B: The streamline degree of train
C: Line spacing
D: Train marshalling form
E: Train power distribution form
F: Train traction power supply mode
A: The speed of the meeting trains
B: The streamline degree of train
C: Line spacing
D: Train marshalling form
E: Train power distribution form
F: Train traction power supply mode
举一反三
- The speed of high-speed train is over ( ).
- I often go to school______. A: by train B: by a train C: by the train D: by trains
- Which of the following is a possible cause of the event "the high speed train is underdeveloped in the US"? A: Americans don't like the high speed train. B: Highway network is advanced. C: The geography is unsuitable for the high speed train. D: The high speed train damages environment.
- Which of the following functions are mainly included in the CTCS of China's train control system? A: Indicates the safe running speed of the train B: Train movement authorization calculation C: Including line idle, occupied and train integrity inspection D: Monitor train safety
- existing line/dedicated line A The high-speed train runs exclusively on a(n) . B The high-speed train shares a(n) .