We feel great anxiety about the general engineer's sickness.
我们非常担忧总工程师的病情。
We feel great anxiety about the general engineer's sickness.
我们非常担忧总工程师的病情。
He has successively been deputy director, general engineer and research professor of the Center of Aeromechanical Research and Development.
历任中国空气动
与发展中心副主任、总工程师、员等职。
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