名词
中文翻译：Unknown
同义词：
['backing', 'backing material', 'backing fabric']
例句：
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1. The engineer used a backing material to reinforce the structure.
工程师使用一种背衬材料来加固结构。
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2. Thebacking material was designed to provide extrastrength and durability.
背衬材料设计用来提供额外的强度和耐用性。
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3. The backing material was carefully selected to ensure itscompatibility with the surrounding materials.
背衬材料被仔细选择，以确保其与周围材料的兼容性。