In 1997, the first Mars rover, Sojourner, was also a technology demonstration project.
1997年,第一个火星漫游者“旅居者”也是一个技术示范项目。
单词 | demonstration project |
释义 |
demonstration project
原声例句
PBS访谈社会系列 In 1997, the first Mars rover, Sojourner, was also a technology demonstration project. 1997年,第一个火星漫游者“旅居者”也是一个技术示范项目。 此间的地球 (instrumental music playing) The project that we're doing in Red Lake is not only just a solar project for that community, it's also a demonstration project, right? (伴奏音乐)我们在红湖做的项目不仅是那个社区的太阳能项目,也是一个示范项目,对吧? |
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