ultrabookn.超极本ultraadj.超；过激的；极端的n.过激论者；急进论者ultrahigh strength aluminum alloys超高强铝合金ultravoltage electronic microscope超高压电子显微镜ultra-violet absorption spectrum紫外线吸收谱线ultra - smooth optical substrate超光滑光学基片ultra-white synchronizing signal白外同步信号ultra-thin glass production line超薄玻璃生产线Ultrasound contrast enhanced agent造影剂Ultra- high pressure homogenizer超高压均质机ultra super-critical power plant超（超）临界火电机组ultrahigh speed integrated circuit超高速集成电路