There is still work to be done before the aircraft will fully rectify the problems identified by the operational test report, Thomas acknowledged.
Thomas承认，在全面矫正“全球鹰”无人机使用测试报告确定的问题以前，还要做很多工作。
1880 - In Menlo Park, New Jersey, Thomas Edison performs the first test of his electric railway.
1880年的今天，在美国新泽西州的门罗公园，托马斯·爱迪生首次实验了他发明的电气化铁路。
1880 - In Menlo Park, New Jersey, Thomas Edison performs the first test of his electric railway.
1880年的今天，在美国新泽西州的门罗公园，托马斯·爱迪生首次实验了他发明的电气化铁路。
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