key washer键: key垫圈: grommet; carrier ring; clout ...键垫: key mat◇键垫圈 key washer垫圈: 垫圈[牧] (给牲畜的圈铺垫干土碎草等) bed down the livestock; spread earth in a pigsty, cowshed, etc.凹垫圈: cupped washer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:键垫圈，即可在微信中查询翻译
