通过改进的堆积法, 制备无间隙孔微结构光纤 ( MSF ).We an improved stacking - capillary method, which can fabricate the micro - structure fiber ( MSF ) without interstitial holes....
Somalia, pop. 7.9 million, income per head about £1.60 a week.索马里，人口790万，人均收入大约每周1.60英镑。The President is about to wind up his visit to Somalia.总统即将结束对索马里的访问。She's afraid for her family in Somalia.她为身在索马里的家人担心。...