名词
中文翻译：平头钉
同义词：
['flat head screw', 'flathead screw']
例句：
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1.The car was fixed with flat cotters to the frame.
这辆车用平头螺钉固定在车架上。
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2. He used a flat cotter to tighten the bolts on the door.
他用一个平头螺钉来紧固门上的螺栓。
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3.Flat cotters are commonly used in construction projects for fastening heavy objects.
平头螺钉常用于建筑项目中，用于快速固定重物。