ultraclayn.超粘土粒ultraadj.超；过激的；极端的n.过激论者；急进论者Ultra-short ultra-intense laser超短超强激光Ultrafiltration membrane teehnology超滤法Ultrarapid Real-time Modem System超高速Modem的实时系统Ultra- Rightist Forces in Germany德国的极右翼势力ultrashort laser pulse measurements超短激光脉冲测量ultra-fast orthogonal shadowgraph超高速阴影照相ultrafiltration membrane filtration超滤膜过滤ultra-super critical boiler steel超超临界锅炉用钢ultrahigh-strength aluminum alloy7×××系高强铝合金ultra-fine grain cemented carbide超细硬质合金

1. Another kind is smallish and ultrathin model.
   另一种是短小超薄型。
2. Ultrathin organosilicon films were synthesized by chemical vapor deposition.
   用化学气相沉积方法制备了超薄有机硅膜。