名词
中文翻译:空心核心
同义词:
['hollow shaft', 'hollow member', 'hollow section']
例句:
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1. The hollowcore of the tree is filled with air.
这棵树的空心部分充满了空气。
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2.The hollow core of the tunnel is filled with water.
隧道的空心部分被水填满了。
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3.The hollow core of the building is made of steel.
这座建筑的空心部分是由钢制成的。