短语词组短语nail -extractor 起钉钳nail extractor adapter 骨钉拔出器接头bone nail extractor 骨钉拔出器;骨髓针拔出器nail extractor tack claw 拔钉器intramedullary nail extractor 骨髓针拔出器claw nail extractor nail puller 起钉器 返回 nail extractor