a long section of track without joints
A: dedicated line
B: curve radius
C: continuous welded rail
A: dedicated line
B: curve radius
C: continuous welded rail
举一反三
- The high-speed train runs exclusively on a(n) _____________. A: dedicated line B: existing line C: special track D: continuous welded rail
- One of the 3 elements of high-speed train is ______ A: speed up to 199km/h B: need for a smaller curve radius C: track made with continuous welded rail D: speed up to 500km/h
- A _______ line is a track used exclusively for a high-speed train. A: train B: track C: welded D: dedicated
- Which of the following is not an element of high-speed rail? A: The need for a wider curve radius. B: Speed up to 199 km/h. C: Tracks made with continuous welded rails. D: The use of dedicated lines.
- Which of the following is NOT an element of high-speed rail? A: Speeds up to 199 km/h. B: The need for a wider curve radius. C: Tracks made with continuous welded rails. D: The use of dedicated lines or upgraded existing lines.