名词
中文翻译：井壁支柱
同义词：
['井壁支柱，井壁支撑，井壁支座例句：1. The footwall shaft is crucial for the stability of the building.（井壁支柱对建筑的稳定性至关重要。）']
例句：
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1. The footwall shaft is crucial for the stability of the building.
井壁支柱对建筑的稳定性至关重要。
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2. The engineer carefully designed the footwall shaft to ensure safe operation.
工程师仔细设计了井壁支柱以确保安全运行。
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3. The footwall shaft was used to support the weight of the heavy equipment.
井壁支柱用于支撑重型设备的重力。