多媒体系统技术参数 "编号 "货物名称 "技术指标 "数量 " "1 "投影仪 "投影技术：LCD液晶技术 "20个 " " " "标称亮度：(ISO流明) 3500 流明 " " " " "标准分辨率：1024*768 " " " " "灯泡功率：210W UHP冷光源灯 " " " " "灯泡寿命： 3000小时 " " " " "对比度： 3500:1 " " " " "投影镜头：手动聚焦/ 手动变焦 " " " " "屏幕比例：4:3(兼容16:9) " " " " "输入：VGA×2 S端子×1 复合视频×1 音频×3 " " " " "输出：VGA×1 音频×1 " " " " "控制：RJ45×1 RS232×1 USB口，实现无PC演示 " " " " "具有节能、环保认证证书 " " "2 "PET投影幕"120寸PET电动 "20个 " " "布 " " " "3 "控制台 "钢制，表面光滑；规格长*宽*高1400*730*1000mm，钢板厚"20个 " " " "度1.5mm；可置设备：教学终端、中控、视频展示台、电脑" " " " "主机、显示器、键盘、鼠标、
