单词	heavy-lift
释义	heavy-lift /ˈhevēlift / adjective [attributive] (Of a vehicle) capable of lifting or transporting extremely heavy loads: a heavy-lift helicopter... The EU lacks heavy-lift aircraft, attack helicopters, fighter/ground attack aircraft, and unmanned drones, and has to rely on American spy satellites for basic intelligence. However, the debate over such designs misses one key point: developing a new heavy-lift vehicle could be the least desirable step NASA could take if it wants a sustainable, affordable exploration program. Allison, however, believes that a heavy-lift vehicle would cost far more: perhaps $20 billion to develop and $1 billion per launch.
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