HD
研究设备, 移液器, 滴水(程序), 化学, 实验室, 降(液), 纽约市, 影视素材,

视频 1

HD
烧杯(实验室玻璃器皿), 研究设备, 移液器, 滴水(程序), 化学, 降(液), 纽约市, 特大城市, 影视素材,

视频 2

HD
烧杯(实验室玻璃器皿), 研究设备, 滴水(程序), 化学, 液体, 纽约市, 特大城市, 影视素材,

视频 3

HD
烧杯(实验室玻璃器皿), 研究设备, 化学, 科学家, 专门知识, 液体, 纽约市, 特大城市, 影视素材,

视频 4
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