名词短语
中文翻译：压入底部衬垫
同义词：
['ramped floor', 'rammed floor finish']
例句：
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1.The engineer used a rammed bottom lining to reinforce the concrete floor.
工程师使用压入底部衬垫来加固混凝土地板。
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2. The car's rammed bottom lining is designed to protect passengers from impact.
汽车的压入底部衬垫设计用来保护乘客免受撞击。
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3.The construction company used rammed bottom lining to improve the durability of the building's foundation.
建筑公司使用压入底部衬垫来提高建筑物基础的耐用性。