名词
中文翻译：积极孔洞
同义词：
['positive gap', 'positive gaps']
例句：
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1.The engineer found a positive hole in the wall that could be repaired.
工程师在墙上发现了一个可以修复的积极孔洞。
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2.The scientist discovered a positive hole in the sample, which could affect its results.
科学家在样本中发现了阳性孔洞，这可能会影响其结果。
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3. The construction crew noticed a positive hole in the concrete foundation, which needed to be filled immediately.
建筑工人注意到了混凝土基础中的阳性孔洞，需要立即填充。