Its real purpose is the launching and retrieval of small aeroplanes in flight.它真正的用途是发射和收回飞行中的小型飞机。A modified BIR model was developed for FTP file retrieval.探讨把文档检索中的二值独立检索模型改进后应用于FTP文件检索.an information retrieval system信...
On examination, her visual acuity was normal and without apparent proptosis.眼科学检查两眼大致正常.This equates to increased and vigor, better sleep and sharper mental acuity.也就是说可以起到增强活力, 改善睡眠,提高心智的作用.We work on improving visual a...