... 外挂板 cladding panel 安装挂板 Fixing rail 直角挂板 Clevis ...
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安装挂板
Mounting plate
以上为机器翻译结果，长、整句建议使用 人工翻译 。
研究者们发现除了一间教室外，所有教室都把投影仪挂于天花板上，屏幕垂直安装，这样的设置使问题更加严重。
The researchers found that all bar one of the classrooms they studied had equipment arranged in such a way as to exacerbate this problem, with projectors on the ceiling and screens mounted vertically.
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