[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

冰面救援首选伸缩杆长≥2.5米的钩杆,配合空心浮力设计(可漂浮),落水者可抓握杆身借力,2.5米能覆盖大部分薄冰塌陷的边缘安全距离

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85%
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Long-term
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