Unverified85% confidenceDecision RuleTime unknown
罩杯需要支撑力时优先选'定型模杯+侧比加高'结构：侧比高度≥10cm能包裹副乳并防止外扩，比纯软杯的支撑力提升明显，适合B罩杯以上
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Unverified侧比高度≥12cm（3/4罩杯侧比结构）才能有效包裹副乳并推向中央产生聚拢，侧比＜8cm的低侧比款只有装饰作用无聚拢力84% similarUnverified大罩杯选择宽下围（下扒/加宽下比）设计，下围织带宽度≥2.5cm能提供稳定托举，窄下围易上滑失去支撑84% similarUnverified层板越厚（如实木25mm、钢化玻璃8mm）抗弯变形能力越强但整体越重且需更强固定；单跨宽度超过80cm应增加中间支撑点，否则中部易下垂83% similarUnverifiedC罩杯以上胸型选择无钢圈需侧翼加高至10cm以上并配3.5cm以上宽下围，否则副乳外溢和支撑塌陷问题明显83% similarUnverified定型文胸叠放收纳时应罩杯朝上、后背带塞入罩杯内，而非对折——对折会压坏模杯定型；收纳格深度需≥8cm才能容纳竖立摆放的文胸82% similar
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