英语词汇expansion bolt怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	expansion bolt
释义	expansion boltn.（名词） A bolt having an attachment that expands as the bolt is driven into a surface.扩开螺栓：带有扩开附件的螺栓，当螺栓进入物体表面时附件可以扩开
随便看	respirator respirators respiratory respiratory distress syndrome respiratory enzyme respiratory pigment respiratory quotient respiratory ratio respiratory syncytial virus respiratory system respiratory therapy respire respired respires respiring respirometer respite respite respited respites respiting resplendent respond respond responded

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