名词
中文翻译：隧道形底板支柱
同义词：
['tunnel-shaped floor pillar例句：1. The engineer designed the new bridge to be trench-shaped for better stability.（工程师设计新桥为隧道形以增强稳定性。）']
例句：
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1. The engineer designed the new bridge to be trench-shaped for better stability.
工程师设计新桥为隧道形以增强稳定性。
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2.The construction of the tunnel required the installation of trench-shaped sill pillars.
隧道建设需要安装隧道形底板支柱。
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3.The pillars were made from reinforced concrete to withstand the weight of the tunnel's roof.
这些支柱由钢筋混凝土制成，以承受隧道屋顶的重量。