Unverified85% confidenceDecision RuleTime unknown
选购防尘罩需预留2-3cm松量，罩体内径应比设备最大尺寸大2-3cm，过紧会摩擦屏幕镀膜或刮花机身，过松则易滑落聚尘不均
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Unverified选购时应确认防尘罩尺寸比设备实际长宽高各留出2-3cm余量，过紧套罩会摩擦刮花机身且难以套取，硬质设备（音箱/显示器）尤其需要贴合角部立体裁剪的款式92% similarUnverified选尺寸时需实测电器长宽高并额外预留2-3cm裕量，罩子标称尺寸多为最大适配值，过紧会包不住底座/挂架，过松则易滑落漏灰83% similarUnverified边刷/边拖能外扩（拖布可向外伸出机身5-15mm）的机型才能真正贴边清洁，否则墙角始终残留1-2cm脏带81% similarUnverified内部有效容积通常比标称外部尺寸小20-30%（壳体壁厚+泡棉占用），选购时按设备实际尺寸预留至少15%空间避免泡棉压不实导致晃动80% similarUnverified面料越厚实防污耐磨越好，但越厚越难套进沙发缝隙、拆装越费力；追求频繁拆洗应选中等厚度（220-260g/m²）带隐形拉链的分体款79% similar
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