Unverified75% confidenceTradeoffTime unknown
广口设计（瓶口直径≥5cm）比窄口更易用汤勺直接舀取和清洗，窄口旋盖防潮好但只能倒出，取粉不便
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75%
Confidence
Long-term
Relevance
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Unverified宽口大开口（≥5cm直径）水壶清洗时手或洗杯刷可完全伸入，比窄口壶更易彻底清洁，但便携直饮时易呛水泼溅，需搭配二级小口盖设计平衡90% similarUnverified杯口内径≥5cm（大口设计）才方便手伸进去或用普通瓶刷彻底清洗底部，小口窄颈杯长期只能倒水冲洗，容易在底部积累茶垢水垢89% similarUnverified杯口内径小于5cm的水壶不建议长期使用，手伸不进无法彻底刷洗杯底，宽口设计（内径≥5.5cm）清洗更彻底可防内壁污垢89% similarUnverified宽口径瓶（口径≥2cm）便于灌装膏状面霜和清洗，但相同容量下瓶体更矮胖、密封面积大更易漏；窄口瓶适合水/乳液类，装膏体则难以倒出和清洗88% similarUnverified瓶口内径≥5cm才方便普通调料勺伸入取用，窄口瓶（≤3cm）只适合倒出液体或撒粉，不适合舀取膏状调料87% similar
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