[KongchangAI]
Unverified50% confidenceFactExact time

1980年代美国工厂自动化浪潮导致蓝领学徒岗位骤降约40%,十年后制造业陷入高技能技工荒,部分精密制造领域恢复周期长达15-20年

1
Sources
50%
Confidence
Long-term
Relevance
7/7/2026
First Seen

Sources

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MCP
get_claim(id=142883)