名词
中文翻译：核心塌陷
同义词：
['core depression', 'core sinking例句：1. The core sag of the building is causing structural problems.（建筑物的核心塌陷导致了结构问题。）']
例句：
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1. The core sag of the building is causing structural problems.
建筑物的核心塌陷导致了结构问题。
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2. The engineer carefully inspected the core sag in the bridge.
工程师仔细检查了桥梁中的核心下陷。
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3.The investigation revealed that the core sag was due to poor construction quality.
调查发现，核心下陷是由于施工质量不佳造成的。