名词
中文翻译：内圈层
同义词：
['inner layer', 'inner ring']
例句：
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1. The car's engine is located in the inner layer of the dashboard.
这辆车的引擎位于仪表盘的内层。
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2. The inner layer of the soil is rich in nutrients.
土壤的内层富含养分。
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3. The inner layer of the ocean is often colder than the outer layer.
海洋的内层通常比外层冷。