Heymsfield and colleagues flew smack-dab into the hole-punch discovery after having conducted a cloud study from a heavily instrumented turboprop plane near Denver International Airport in 2007.
海明斯菲尔德和同事们于2007年在丹佛国际机场附近的一个装备有许多仪器的涡轮螺旋桨飞机上展开云研究后不久就不偏不倚的发现了穿洞云。
The second Airbus Military A400M, known as MSN2, has run all four of its Europrop International (EPI) TP400 turboprop engines in a series of trials after being handed over for flight test.
第二架第二架空客军事运输机a 400m(即msn2)在飞行测试后一系列的试验中，启动了自身全部EPI TP400涡轮发动机。
After two years of careful preparation, the single-engine turboprop TMB700 aircraft left Beijing Capital International Airport Sunday afternoon.
经过两年多的紧密筹备，7日下午，单引擎涡轮螺旋桨飞机TMB700从北京首都国际机场启航。
After two years of careful preparation, the single-engine turboprop TMB700 aircraft left Beijing Capital International Airport Sunday afternoon.
经过两年多的紧密筹备，7日下午，单引擎涡轮螺旋桨飞机TMB700从北京首都国际机场启航。
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