名词
中文翻译：膨胀螺丝
同义词：
['expander', 'expansion screw']
例句：
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1.The engineer used an expansion screw to adjust the size of the hole.
工程师使用膨胀螺丝来调整孔的大小。
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2. The carpenter tightened the expansion screws on the door hinges.
木匠在门铰链上紧固膨胀螺丝。
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3.The construction company installed a new expansion screw system for the building's elevator shaft.
建筑公司为大楼的电梯井安装了新的膨胀螺丝系统。