[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

疏通长度按目标点距离预留1.5倍余量:一般厨房下水堵塞在1-3米内选5米,主排污管深处堵塞需10-15米长弹簧

1
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82%
Confidence
Long-term
Relevance
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