conical washer and canuts袋: bag; sack; pocket; pouch帽: cap; hat; helmet; headgear螺帽: blind nut; nut带螺帽螺栓: bolt and nut绞螺帽螺纹机: nut-tapping machines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:袋帽螺帽，即可在微信中查询翻译
