单词	expansion fastener
释义	DictionarySeeexpansion bolt expansion fastener expansion bolt expansion bolts An anchoring device having an expandable socket that swells as a bolt is tightened into it; used in masonry walls for attaching timber, etc.
随便看	xic xicana xicano xi-c baryon xice xicec xicf xichang xichang city xics xict xictmd xicw xid xidas xidb xidi international incorporated xidm xidp xie xieg xie lingyun xie xie xif xifaxan

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