短語(yǔ)詞組短語(yǔ)Rack to Back Credit 背對(duì)背信用証full rack back position 齒條後退極限位置back rack 背後接線架;經(jīng)紗張力調(diào)整機(jī);後架back rack angle 縱曏角Push Back Rack 後推式貨架;後推式料架;後推貨架Push -Back Rack 後推式貨架back shading rack 反遮架;反曏電阻 返回 rack back