A mechanic inspects a Reaper at a US air force base in Nevada.
一名机械师在美国内华达空军基地检查“收割机”无人机。
2
My boyfriend, Tim, a mechanic, does work for the Air Force Academy.
我的男友提姆是一位为空军学院工作的机械师。
3
In this paper, the vibration mechanic at model for a no-base, V-type positon air compressor is deduced, some elementary problems of design and calculation of damping system are expounded.