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They are clearly struggling in 3G , said Duncan Clark , chairman of BDA , a Beijing telecom consultancy .

它们在3G方面显然正苦苦挣扎，北京电信咨询机构BDA的董事长邓肯克拉克（DuncanClark）表示。

Biotinylated Dextran Amine ( BDA ) for Observing the Local Axonal Transport in Rabbit Sciatic Nerve : An Experimental Study

生物素葡聚糖胺观测周围神经局部轴突运输的实验研究

The BDA on system level mainly includes damage location , the determination of BDAR methods and the BDAR report .

系统级评估主要包括损伤定位和确定关键件。关键件级评估包括损伤定位、确定抢修方法和提交评估报告3方面。

BDA 's hi-tech designs make it hard for you to believe that you are actually in an industrial park .

北京经济技术开发区的高科技设计，使你很难相信你是在一个工业园区实际。

BDA points out that despite China ' s booming exports of grey-market phones , domestic sales have started to fall .

北京的咨询公司指出，虽然中国灰市手机出口繁荣，可是国内销售已开始下降。