Unverified85% confidenceDecision RuleTime unknown
投射比决定摆放灵活性：投射比1.2:1的机型投100英寸需约2.6米距离，短焦(0.8:1以下)机型1.5米内即可投100英寸，小房间/床头投墙需选短焦或超短焦
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85%
Confidence
Long-term
Relevance
-
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Unverified投距比决定摆放：长焦机需退到3米外才投100吋，房间进深＜4米或想放墙角，应选投距比＜1.2的短焦机84% similarUnverified投影比（throw ratio）决定所需距离，1.2:1的机型投100英寸需约2.6米，短焦(0.8:1以下)适合小房间但价格高，租房或小客厅需先量墙面距离再选投射比82% similarUnverified投影尺寸与投射比、房间进深强相关：投射比1.2的机器投100寸需约2.65米距离，短焦(0.8)约1.7米，购买前必须实测墙面到摆放点距离81% similarUnverified投影比（Throw Ratio）决定所需距离：投影比1.2:1时投100寸约需2.6米，短焦机型（0.8:1以下）可在1.5米内投大画面，卧室/租房小空间应选短焦或超短焦81% similarUnverified尺寸越大越耐玩但室内占地矛盾突出：小户型客厅建议整机占地≤1.2m×0.8m，否则收纳困难且影响动线；带秋千/攀爬的组合款展开后往往需2平米以上81% similar
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