three wireadj.三线针的threenum.三n.三；三个adj.三个的three-dimensional scaffoht三维多孔支架three-dimensional geometry三维几何three- state superposition三态叠加Three Parameters Solid Model三参数固体模型three hundred and ninety one(=391) 三百九十一three - dimension teaching立体化教学three directions DEXEL model三向DEXEL模型three- dimensional culture三维培养three-layer co-extrusion三层共挤three translating principles翻译三原则