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Model making components for demonstrating - molecular structure, atomic theory etc
Model making components for demonstrating - molecular structure, atomic theory etc
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机译:用于演示的模型制作组件-分子结构,原子理论等
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摘要
Sectors of a sphere, representing atoms or atom groups, are made of foamed plastic e.g. polystyrol and cured, with cylindrical metal sockets and retainer spings moulded in place for use with round pins which have spherical knob ends with which the spings engage used to fix the sectors together.
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