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多数品牌旅行套装/小样的乳液容量在7-30ml，一支20ml乳液按每次全脸约1ml计算约可用20天，足够覆盖大多数出行周期无需带整瓶

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保湿乳液category

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Unverified旅行护肤按每次用量估算：水约3ml/次、乳2ml/次、精华1ml/次，7天行程水乳各准备30-50ml即可，选30ml分装比100ml正装更合理86% similar Unverified不建议为长途多日旅行只买30ml以下小瓶，护肤品日均用量约2-3ml，超过一周应选50-100ml规格避免中途用完83% similar Unverified水乳各约30ml的容量，日常早晚使用大约可覆盖一周左右的短途旅行，超过十天的长途出行可能不够用82% similar Unverified12ml容量仅够面部使用约3-5天（每天一次），若需全身涂抹或长途旅行天数较多，单瓶远远不够，需备多支或搭配正装82% similar Unverified短途1-2天出行不建议买大容量套装（如8件套含100ml大瓶），多数护肤品每次用量5-10ml，30-50ml小瓶更省空间且更易过安检袋容量限制80% similar

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curl https://kongchang.com/api/v1/knowledge/claims/119927

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get_claim(id=119927)