中国造太阳能无人机飞入两万米高空-凯发k8官网

中国造太阳能无人机飞入两万米高空
文章来源:未知 文章作者:enread 发布时间:2017-06-02 07:46 字体: [ ] 
(单词翻译:双击或拖选)
china's first domestically designed large solar-powered unmanned plane has reached above 20,000 meters in altitude on a test flight in the country's northwest.
 
中国首架自主设计的大型太阳能无人飞机在国内西北部某地进行试飞,飞行高度超过20000米。
 
 
using only solar power, it's believed the plane may be able to stay in the air for months or even years at a time.
 
experts say that the plane, at its maximum flight altitude, can serve as a more flexible, economic satellite, operating in near space for both 1 and military use.
 
it could aid in the event of natural disasters, monitor 2 areas at sea, assist during peacekeeping operations, and serve in the fight against terrorism.
 
it could also help to extend wi-fi signals, mobile communication or digital broadcast signals to remote areas.


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1 fqczn     
adj.城市的,都市的,市民的,公民的
参考例句:
  • i feel it is my civic duty to vote.我认为投票选举是我作为公民的义务。
  • the civic leaders helped to forward the project.市政府领导者协助促进工程的进展。
2 wesyg     
n.船运(发货,运输,乘船)
参考例句:
  • we struck a bargain with an american shipping firm.我们和一家美国船运公司谈成了一笔生意。
  • there's a shipping charge of £5 added to the price.价格之外另加五英镑运输费。
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