他们甚至在直升机摧毁的目标上也安装了麦克风。
They even hooked microphones up to the targets that the helicopters destroyed.
从成立麦克唐奈飞机于1939年到1960年代初以来，大量的努力，投入的直升机技术。
From the founding of McDonnell Aircraft in 1939 into the early 1960s, substantial effort was invested in helicopter technology.
楼“的历史直升机工程部，麦克唐纳飞机公司”杂志美国直升机学会，第二卷。
Roever, F. , "History of the Helicopter Engineering Division, McDonnell Aircraft Corporation, " Journal of the American Helicopter Society, vol.
薛童铭在美国的《遥控直升机》杂志2008年2月号上。感谢麦克和他的同事们在过去两年里的辛勤工作。
Brandon in "RC Heli" Feb 2008 Issue (Issue 20). Thanks to Mike and RC Heli Staff for over two years good work done.
薛童铭在美国的《遥控直升机》杂志2008年2月号上。感谢麦克和他的同事们在过去两年里的辛勤工作。
Brandon in "RC Heli" Feb 2008 Issue (Issue 20). Thanks to Mike and RC Heli Staff for over two years good work done.
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