基本解释[機械工程]桑蠶絹词组短语短語Mulberry spun silk fabrics 桑蠶絹絲織物Mulberry spun silk yarn 桑蠶絹絲mulberry spun silk 桑絹Mulberry spun silk raw 桑蠶絹紡原料Mulberry spun silk on cones 筒裝桑蠶絹絲专业释义機械工程桑蠶絹