名词
中文翻译：方螺纹
同义词：
['square thread', 'square-threadedscrew']
例句：
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1. The carpenter used a square screw thread tofasten the wooden planks together.
木匠使用方螺纹将木板固定在一起。
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2. Theconstruction workers were using square screw threads tosecure the wooden beams.
建筑工人正在使用方螺纹来固定木梁。
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3. Theengineer designed the square screw thread to ensurea strong and durable connection.
工程师设计了方螺纹，以确保连接牢固且耐用。