Unverified70% confidenceDecision RuleTime unknown
铲面齿间应有一定倾斜或波浪设计，平直齿面在滤砂时结团易滚落回盆，波浪/凹弧铲面能兜住结团减少反复铲取
1
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70%
Confidence
Long-term
Relevance
-
First Seen
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