Lub ntsuas tsheb ntawm cov tsheb ciav hlau khiav yog cov xeeb ceem, kev siv qis zog, kev ntseeg siab thiab kev ua haujlwm zoo. Cov khoom yog stably ua haujlwm ntawm ze li ntawm 4,000 noj thoob ntiaj teb, nrog ib tug cumulative muag ntim ntawm dua 5 lab.
Cov ntaub ntawv thov
| • Cov teeb meem kev teeb tsa kev tswj hwm txoj kab tsheb |
| • High-speed rail khiav cov khoom siv ntse ntse |
| • Kev hloov tsheb ciav hlau |
| • Kev tiv thaiv kev tiv thaiv kev pov hwm kev nyab xeeb thiab kev tswj xyuas kev nyab xeeb |
| • Tsheb nqaj hlau thiab tsheb hluav taws xob ua ke |
| • Locomotive inverter zog mov, traction fais fab mov |
