Unverified85% confidenceDecision RuleTime unknown
拉伸长度选择：单个窗户宽度＜1.5m选2-3m拉花即可，1.5-2.5m选4m款，落地窗或整面墙布置需5m以上或多条拼接
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85%
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Long-term
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Unverified擦2层以上落地窗需伸缩长度≥3米，室内普通窗户1.5-2米足够；选购时实际可用长度约为标称长度的90%（接头重叠占用）90% similarUnverified伸缩杆选购要让实际窗宽落在标称范围的中段而非极限值：如窗宽1.5米应选1.1-2米款而非最大1.5米款，杆体伸出越长内管重叠越少，承重和抗弯下降50%以上86% similarUnverified窗帘宽度需按窗框实际宽度乘以褶皱倍数计算：轻薄褶皱1.8-2倍，普通2倍，高级饱满感2.5倍；高度需在窗框顶部上方15-20cm安装并落地或离地1cm防漏光85% similarUnverified叶片宽度选择：窗户高度＜1.5m选25-35mm窄叶片视觉更精致，窗户高度＞1.5m或大落地窗选50-63mm宽叶片，宽叶片开合时遮光更彻底且拉绳操作次数更少85% similarUnverified选购前测量窗宽后应按窗宽×1.05再加两侧各15-20cm延伸量确定杆/轨长度，遮光帘需超出窗洞两侧使闭合时侧边不漏光；伸缩杆要选实际可调范围覆盖目标长度且预留≥10cm余量，避免拉到极限承重下降85% similar
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