scoring_breakdown:[{"source":"word_of_mouth","score":90.79999999999998,"weight":0.25,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍称赞博朗J3000磨刀效果显著,钝刀几分钟内恢复锋利,尤其对不锈钢刀效果明显。操作简单,放入刀片自动引导,无需技巧。部分用户反映陶瓷刀磨后边缘略粗糙,但整体满意度高。长期使用后电机噪音略有增大,但耐用性良好。多数评价认为性价比高,适合家庭日常维护刀具。","source_count":0}},{"source":"objective","score":94,"weight":0.2,"confidence":0.7,"details":{"dimension":"after_service","rating_avg":4.7,"review_count":28500,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":94,"weight":0.45,"confidence":1,"details":{"rating_avg":4.7,"review_count":28500,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["\"博朗J3000是厨房里的'刀锋战士',钝刀秒变锋利,切菜如丝。\"——美食博主@厨房小当家","\"德国设计就是靠谱,磨刀又快又安全,新手也能轻松上手。\"——生活达人@居家小能手"]}}]