Unverified75% confidenceDecision RuleTime unknown
放电针/碳刷电极为易损件,长期使用会积尘氧化导致浓度衰减,选购应确认电极可清洁或可更换,一体密封无法维护的机型寿命受限
1
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75%
Confidence
Long-term
Relevance
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