单词	once only medical items
释义	once only medical items 一次性医疗用品
随便看	structural draft structural drafting structural draftsman structural drag structural drawing structural-drawing Structural drawing of portal waterproofing structural drawings structural drill structural drilling structural dualism structural duality structural ductility structural durability structural durability design structural dynamic structural dynamic analysis Structural dynamic characteristic structural dynamic characteristics structural dynamic characteristics parameter structural dynamic equation structural dynamic equations structural dynamic modification structural dynamic optimization structural dynamic optimum