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The microstructure model of skin structure (1part)
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The microstructure model of skin structure(1 part)
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The model of spiral organ and membranous cochlea duct (3parts)
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The model of embryo embedded process and veil arises (6parts)
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The model of relation between fetus fetal membranes and uterus (1part)
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The model of placenta and umbilical cord (2parts)
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The model of structure and copy to DNA (one box)
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