In each classroom there is a computer, an overhead projector, and a smart white board.

每个教室里都有一台电脑、一台投影仪和一块智能白板。

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Curtain wall rock wool board should be moisture-proof overhead stacking.

幕墙岩棉板应架空防潮堆放。

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The overhead jumbo board showed a close-up shot of Nowitzki wiping his eyes.

这个时候，近距离抓拍的摄像机将诺维茨基擦拭眼角的画面投放到了空中的大屏幕。

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The overhead video board encouraged them to wave towels during a third-quarter timeout, but it seemed it was mostly missed or ignored, as there was no noticeable response.

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First responders and other personnel were greeted with loud cheers as they were brought onto the floor during timeouts, and a tribute to the city's strength played on the overhead video board during a first-quarter stoppage.

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The important thing is to back those points up, with another visual aid, even something as simple as hand illustrating your points on a white board or overhead projector.

FORBES: The Digital Age: Why Adding Visuals Will Transform Your Presentation