Unverified85% confidenceDecision RuleTime unknown
节日窗帘尺寸应按窗框宽度的1.8-2倍计算帘宽，才能形成饱满褶皱，节日款印花在褶皱下更立体；若按1.5倍会显得图案拉伸稀疏
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Unverified计算成品帘宽度需按褶皱倍数：2倍褶（帘宽=窗宽×2）遮光和垂感最佳，1.5倍偏平淡且漏光，订购时报的是成品宽还是布料宽要问清，否则实际褶皱不足86% similarUnverified打褶倍数（褶皱比）建议2.0倍以上，低于1.8倍窗帘拉开后偏平、遮光和隔音效果打折；计算用布量时按窗宽×褶皱倍数下单83% similarUnverified窗帘用料计算按窗宽×2到2.5倍褶皱系数，再加上下折边各10-15cm；遮光帘选三层复合遮光布（遮光率≥90%），涂层遮光布价格低但易发硬开裂83% similarUnverified预留褶皱倍数决定遮光效果：布料宽度应为窗宽的2-2.5倍才能形成足够褶皱防止漏光，1.5倍以下会显得平直且侧边漏光，实际遮光大打折扣82% similar
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