• 1. first generation system: 第一代系统
• 2. first generation expert system: 第一代专家系统
• 3. First-Generation thermal imaging system: 一代热成像系统

• 1.After all, I’m still perfectly happy with my first generation iPod Touch, and it will never see a significant operating system upgrade again.
  毕竟对于我来说，我还是很满意我那i touch一代的，而它却再也不会对其操作系统进行重要升级了。
  dict.yoduao.com
• 2.China will start building its first large nuclear-power reactor with home-developed 'fourth generation' technology in 2012-13, a senior engineer involved in developing the system said.
  中国原子能科学研究院实验快堆工程部总工程师徐说，2012 - 2013年，中国将开始利用自主研发的“第四代”技术，建造中国首个大型核电反应堆。
  dict.yoduao.com
• 3.NPP is a risk reduction mission for NPOESS, and will be the first major element of the next generation U.S. Earth observation system when it is launched in 2010.
  NPP是NPOESS的风险降低任务，将成为2010年发射的下一代美国地球观测系统的首个主要组成部分。
  dict.yoduao.com

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