曼哈顿工程(the Manhattan Project)和阿波罗计划(the Apollo program)提醒我们了这种可行性。自由市场可能无法资助足够多的基础研究。
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Various kinds of olivine were also collected on the moon throughout the Apollo program.
而阿波罗计划也从月球上收集回了各种橄榄石。
By the time of the Apollo program, the quality and variety of food increased even further.
到“阿波罗”计划时,食物质量和花样都进一步提高和增多。
NASA has not flown astronauts beyond low-Earth orbit since the Apollo program, in the 1970s.
美国航空航天局自20世纪70年代的“阿波罗计划”以来,就没有进行过超出地球低轨道的载人航空活动。
Today look back at the first flights of the Apollo program designed to land humans on the moon.
VOA: special.2009.07.08
Harrison Schmitt talked about the moon landings of the Apollo program as a historic beginning to greater exploration.
VOA: special.2010.04.28
The aim was to recreate the success of the Apollo program, mainly based on existing technologies.
VOA: special.2010.04.28
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