[KongchangAI]
Unverified80% confidenceSolutionTime unknown

选购投影仪的标准路径:先确定使用环境(暗室/客厅)决定亮度门槛→测量投射距离决定焦段类型→根据观看内容(影音/游戏/办公)决定分辨率与画质技术→最后权衡便携与智能系统

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