[KongchangAI]
Unverified60% confidenceDecision RuleTime unknown

旋转式(机械发条)计时器普遍存在最后30秒内计时不准(发条张力衰减导致误差达±1分钟),不适合考试模拟等精确计时场景,精确场景应选数字式石英计时

1
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60%
Confidence
Long-term
Relevance
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curl https://kongchang.com/api/v1/knowledge/claims/476415
MCP
get_claim(id=476415)