名词
中文翻译：填充物
同义词：
['filling', 'filler']
例句：
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1.The concrete mix needs to be carefully measured to ensure the right amount of filler aggregate.
混凝土混合物需要被仔细测量以确保正确的填料量。
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2. The engineer used a special type of filler aggregate to improve the durability of the structure.
工程师使用了一种特殊的填料来提高结构的耐用性。
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3. The construction company was required to use only approved filler aggregate for the project.
建筑公司被要求只使用批准的填料来施工项目。