Unverified88% confidenceDecision RuleTime unknown
鸭嘴阀（duckbill valve）和白色小圆膜是产奶效率的核心易损件，弹性下降会直接导致吸力衰减，建议每2-3个月或吸力明显下降时更换，出现开裂、发黏、变形立即更换
1
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88%
Confidence
Long-term
Relevance
-
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