scoring_breakdown:[{"source":"word_of_mouth","score":88.5,"weight":0.5,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价集中在其对刀头寿命的延长效果,多数人表示使用后刀头噪音降低、剃须更顺畅。尤其适合飞利浦高端9系用户,原厂配件匹配度高。部分用户反映对严重磨损的刀头效果不明显,建议在刀头使用3个月内进行维护。有评论提到磨刀石表面易残留胡渣,需及时清洗。整体满意度较高,被认为是延长刀头寿命的性价比之选。","source_count":3}},{"source":"objective","score":88.00000000000001,"weight":0.1,"confidence":0.7,"details":{"dimension":"comfort","rating_avg":4.4,"review_count":12300,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":88,"weight":0.25,"confidence":1,"details":{"rating_avg":4.4,"review_count":12300,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["\"飞利浦原厂磨刀石比第三方靠谱多了,刀头用半年还像新的一样。\"——@数码生活家阿飞","\"每次用完感觉刀头又锋利了,拉扯感明显减少。\"——@剃须达人老李"]}}]