名词
中文翻译：Unknown
同义词：
['sand interstitial', 'sandy inclusion', 'sandy impurity']
例句：
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1. The engineer found a sand inclusion in the concrete.
工程师在混凝土中发现了一个砂粒夹杂物。
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2. The sand inclusion was causing the machine to run poorly.
砂粒夹杂物导致机器运行不佳。
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3. The sand inclusion was identified as a result of the testing process.
砂粒夹杂物是在测试过程中被发现的。