Unverified85% confidenceTradeoffTime unknown
PET硬瓶装较稀的液体（如化妆水、卸妆水）密封性尚可，但装粘稠膏体（如乳液、护发素）时瓶口螺旋盖处容易渗漏，需额外用保鲜膜缠绕或放入密封袋
1
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85%
Confidence
Long-term
Relevance
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UnverifiedPET硬瓶材质不可挤压出液，不适合惯用挤压瓶身取用护肤品（如洗面奶、面霜）的用户；挤压出液需选购套装中的按压泵头款式。86% similarUnverified液体分装瓶不建议买普通PET塑料款装护肤品/精华，气压变化易挤压外漏；应选带回吸阀或硅胶挤压瓶，且装机前留1/5空间防高空膨胀84% similarUnverified分装瓶优先选PET或PP材质硬瓶而非软袋，含高浓度酒精的爽肤水或喷雾在飞机气压变化下软袋易渗漏，硬瓶留1cm空气缓冲空间82% similarUnverified便携按压式水瓶（一体导水碗设计）与滚珠瓶权衡：按压式喂水效率高、宠物接受度好，但结构复杂缝隙多、清洗麻烦；滚珠瓶密封性好但需宠物学会舔舐81% similarUnverified分装瓶优选PET/PETG硬质材质带回吸阀（挤压回弹）或真空按压瓶，避免软硅胶挤压瓶——软瓶在飞机气压变化下易反渗漏，造成洗漱包污染81% similar
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