Unverified75% confidenceTradeoffTime unknown
覆盖面积权衡：厂商标称覆盖面积通常在理想密闭无干扰环境下测得，实际有效范围约为标称的40-60%，选购时按房间面积的1.5-2倍标称值预留冗余
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Unverified标称覆盖面积应按厂商数值的60%-70%估算实际可用面积，且承重墙、镜面/金属衣柜会额外衰减信号，砖混老房比标称多加一个节点更稳妥82% similarUnverified预留内容物空间：透明箱标称容积为满溢值，实际可用约为标称的80%（箱盖凸起和加强筋占位），选购时按需求容积上浮25%选型77% similarUnverified喷涂型产品实际覆盖率通常为8-12㎡/L，购买前用（家具展开表面积+墙顶面积）估算用量，仅按房间地面面积计算会严重买少76% similarUnverified单次覆盖面积按标称打折：喷雾均匀度差，实际覆盖约为宣传值的60-70%，按每升覆盖8-12㎡估算用量，木质板材需多面多层喷涂74% similarUnverified覆盖面积按理论用量计算：乳胶漆约10-14㎡/L/遍，双遍施工需按对折估算实际面积；无机涂料遮盖力弱通常需刷2-3遍，实际单位面积用量比乳胶漆高30%-50%70% similar
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