In the past five years, xx-type high-speed trains have experienced 4 derailment accidents. In response to public doubts about the design flaws of xx-type high-speed trains, the train manufacturer of this type put forward a refutation: the investigation showed that every derailment accident was caused by the driver's violation of operating regulations.
for the train manufacturer's refutation?
When questioning the design flaws of the xx-type high-speed train, the public did not clearly point out what kind of flaws exist.