结论口腔环境下，皮肤和牙槽黏膜均有纤维结缔组织在种植体表面附着，形成“袖口”，起生物封闭作用。
Conclusion Skin graft and alveolar mucosa both formed fiber connective tissue attachment on the surface of implant, which seal the environment between the oral and bone-interface.
如果俄罗斯想实施送猴子上火星的计划，格鲁吉亚这个研究所将成为一个封闭训练"生物圈"的建造地点，猴子将长期生活在这个生物圈内，模拟太空飞行。
If Russia pursues the idea of sending monkeys to Mars, Mikvabia's institute could become the site of an enclosed "biosphere" where apes would be kept for long periods to simulate space flights.
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