4K 手、平板电脑和实验室里的男士，科学和研究，以及医学实验、生物技术或专家。特写镜头，人物或 股票录像 手、平板电脑和实验室里的男士，科学和研究，以及医学实验、生物技术或专家。特写镜头，人物或 股票录像
HD Adult man loading wooden pallets onto an industrial truck material science research transport logistics adult man loading wooden 影视素材 Adult man loading wooden pallets onto an industrial truck material science research transport logistics adult man loading wooden 影视素材
HD Man handling aerated concrete blocks on a truck bed material science research industrial logistics concept man handling aerated 股票视频 Man handling aerated concrete blocks on a truck bed material science research industrial logistics concept man handling aerated 股票视频
HD Three researchers tapping tablet stylus to analyze rotating molecular hologram in science research three researchers tapping 股票录像 Three researchers tapping tablet stylus to analyze rotating molecular hologram in science research three researchers tapping 股票录像
HD Modern science research laboratory interior with workstations multiple equipment and glass partitions creating a bright clean 影视素材 Modern science research laboratory interior with workstations multiple equipment and glass partitions creating a bright clean 影视素材
HD Modern science research laboratory interior with window view interior empty modern science research laboratory with glassware 影视素材 Modern science research laboratory interior with window view interior empty modern science research laboratory with glassware 影视素材
4K Science research and men with computer fist bump teamwork success results internet people scientist conversation pc feedback for 股票视频 Science research and men with computer fist bump teamwork success results internet people scientist conversation pc feedback for 股票视频
4K Science research and people with microscope coaching and testing with conversation medical scientist and forensic science research 股票视频 Science research and people with microscope coaching and testing with conversation medical scientist and forensic science research 股票视频
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