名词
中文翻译：门框核心
同义词：
['core', 'center', 'axis', 'pivot']
例句：
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1.The in-gate core is a crucial component of the door's structure.
门框核心是门结构的关键部分。
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2.The engineer carefully analyzed the in-gate core to ensure its stability.
工程师仔细分析了门框核心，以确保其稳定性。
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3. The design of the in-gate core plays a significant role in determining the overall performance of the door.
门框核心的设计对整体性能起着决定性的作用。