double key coupling双键: double bond; DNA联轴节: shaft coupling; coupling; ra ...关键联轴节: keyless coupling花键联轴节: spline coupling无键联轴节: keyless coupling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:双键联轴节，即可在微信中查询翻译
