adjusting nut蝶: butterfly螺母: nut source; origin; parent蝴蝶螺母: winged nut蝶螺钉: adjusting screw蝶螺栓: adjusting bolt; set bolt下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:蝶螺母，即可在微信中查询翻译
