118688白小姐中特资网

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                131455白小姐玄机资料

                会议室智能中央控制系统演示

                发布时间:2014-03-28 11:34:00 点击:

                    会议室智能中央控制系统演示,控制投影机开关,投影机信号源选择,投影幕布上升、下降,大屏幕开关,环境灯光等。


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