Unverified50% confidenceFactExact time
434英里/小时（约698公里/小时）对应的马赫数约为Ma 0.56，处于亚声速向跨声速过渡的临界区域
1
Sources
50%
Confidence
Long-term
Relevance
7/7/2026
First Seen
Sources
Cite This Claim
Stable URI
https://kongchang.com/claim/172523API
curl https://kongchang.com/api/v1/knowledge/claims/172523MCP
get_claim(id=172523)