名词
中文翻译：内部骨骼
同义词：
['internal skeleton', 'internal framework']
例句：
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1. The new design features an internal skeleton that is more flexible and durable.
新设计的特点是内部结构更灵活、耐用。
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2. The research on the internal skeleton of the human brain has been ongoing for decades.
关于人类大脑内部结构的研究表明了几十年。
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3. The internal skeleton of the building is made up of steel beams and columns.
建筑的内部骨架由钢梁和柱组成。