ultraismn.激进论；极端主义ultraadj.超；过激的；极端的n.过激论者；急进论者ultra-rapid frozen embryo超快速冷冻胚胎ultra-high pressure spray超高压喷雾Ultra-fine diamond powder金刚石超微粉ultrarsonic scale inhibitor超声波阻垢器Ultralow anterior resection超低位前切除ultra-high strength steel超高强度钢ultra-supercritical steel超超临界钢ultra-high order harmonic超高次谐波ultrahigh speed integration超高速集成电路ultrahigh energy phenomenon超高能现象