名词
中文翻译：双层管壳同义词
同义词：
['doublecasing', 'double wall', 'double layer例句：1. The engineer designeda double tubesheet to improve the efficiencyof the machine.（工程师设计了双层管壳来提高机器的效率。）2. The constructioncompany used double tubesheets to reinforce the walls ofthe building.（建筑公司使用双层管壳来加固建筑物的墙壁。）']
例句：
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1. The engineer designeda double tubesheet to improve the efficiencyof the machine.
工程师设计了双层管壳来提高机器的效率。
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2. The constructioncompany used double tubesheets to reinforce the walls ofthe building.
建筑公司使用双层管壳来加固建筑物的墙壁。
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3. The double tubesheet was installed in the tunnel to preventwater from seeping through.
双层管壳被安装在隧道中，以防止水渗透。