名词
中文翻译：次级沉降
同义词：
['subsidence', 'subsidence']
例句：
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1.The subgrade settlement caused the foundation to sink.
次级沉降导致地基下沉。
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2. The engineer calculated the subgrade settlement for the new road.
工程师为新道路计算了次级沉降量。
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3. The construction crew was concerned about the potential subgrade settlement issues.
施工团队担心潜在的次级沉降问题。