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Crook’sche荧光管 (Large Crooke's Fluorescent Tub...
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3个地球仪 (3 Terrestrial Globes)...
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德国Brockhaus Konversations百科全书 (17-part Brockh...
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4件实验室及医疗用具 (4 Laboratory and Medical Devices)...
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纽伦堡袖珍日晷 (Nuremberg Compass Sundial)...
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立方米计算器 (Cubic Calculator)...
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两件科学仪器 (2 Scientific Instruments)...
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Otto Fennel标准米 (Standard Meter 'Otto Fennel')...
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土地占卜仪 (Geomantic Compass)...
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炮兵罗盘 (Artillery Compass)...
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3根物理学真空管 (3 Physical Vacuum Tubes)...
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3根物理学真空管 (3 Physical Vacuum Tubes)...
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莱顿瓶电池 (Battery of 6 Leiden Jars)...