单词	Daguan island
释义	Daguan island 大管岛
随便看	design units design unit specification design upon Design validation design validation and usability testing design value design value for strength of material design value method design value of action design value of a load design value of an action Design value of a property of a material design value of compressive strength design value of load design values design variable design variable method design variable of mechanism design variables design variance component design variation design variations design vector design vehicle design vehicle classification criterion