The implement applications of erbium doped fiber amplifier (EDFA) and fiber Raman amplifier (FRA) make the launchingpower in optical fiber communications systems increased significantly.
Samsung has an established interest in solar power, launching a mobile phone using the technology in 2009 at the mobile World Congress show in Barcelona.
三星在太阳能方面早已有确定兴趣，在2009年的巴塞罗那全球移动大会上就曾展出过应用此技术的手机。
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Based on the simple analysis of main engine power generation system of one missile launching vehicle, this paper puts forward a method and measure adding outside power supply.