button head screw圆: round; circular; spherical螺钉: nut bolt; screw; screw faste ...椭圆螺钉: oval head screw圆螺帽: circular nut; round nuts圆螺母: acorn nut; circular nut; disc nut; round nut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:圆螺钉，即可在微信中查询翻译
