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美国的X系列飞行器研究覆盖面很广。远的我们可以想到X-31推力矢量技术验证机,近的可以想到X-43高超音速验证机、X-45无人战斗机。X系列飞行器研究目前的状况如何?这正是本文要告诉读者的
The United States of America X series aircraft research covers a wide range. Far we can think of X-31 thrust vector technology verifier, the near-X-43 hyperspectral demonstrator, X-45 unmanned fighter. What is the current status of the X-series aircraft research? This is exactly what the article tells the reader