ultrabookn.超极本ultraadj.超；过激的；极端的n.过激论者；急进论者ultra-high speed sewing machine超高速缝纫机ultra high frequency PD detection超高频局部放电检测ultravoltage elctronic microscope超高压电子显微镜ultra-short wave device for eye超短波五官电疗机ultra-long hole-drilling pile超长钻孔桩ultracentrifugal characterization超离心特性ultra-high voltage transmission特高压输电Ultra-width common-mede range超宽输入范围ultrasoundcardiogramHeart failure心力衰竭ultrasmall superparamagnetic iron超微超顺磁性氧化铁