Among all low-voltage high-current DC/DC converter topologies, the current-doubler topology is optional., ...

China's TV advertising revenue rose 7.5% to $27.4 billion in 2010 from the year before, according to GroupM., 根据群邑中国媒介的数据，2010年中国的广告收入总额为274亿美元，比前一年上涨了7.5%。

Its author, Professor Michael Hulme of Lancaster University, names this age group \digital natives\ as they have grown up in ...