科学家在实验室戴口罩和手套 Scientist wearing masks and gloves in a laboratory

男科学家穿着长袍，戴着口罩和手套，在实验室里按下机器上的按钮。

Male scientist in gown, mask and gloves, pressing buttons on a machine in a laboratory.

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视频来自： https://mixkit.co/free-stock-video/scientist-wearing-masks-and-gloves-in-a-laboratory-4707/

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Medical Health Face Mask Worker Machine Industrial Industry Factory Science Working Work Person Scientist Fabric Medium Shot

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