... roving machine ==> 粗纱机 roving vehicle ==> 探险车 roving waste opener ==> 打粗纱头机 ...
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三部探险车在月球表面累计行进55英里，它们被永远留在了月球上。
The three rovers covered a cumulative 55miles on the lunar surface.
第一部探险车在阿波罗15飞船航天飞行期间的7月31日，由大卫·斯科特和詹姆士·欧文在月球上驾驶。
The top speed was 8 mph. The first rover was used during the Apollo 15 mission, when David Scott andJames Irwin drove it on the moon on July 31, 1971.
猎户座探险车将乘载新的核动力火箭飞向太空，包括一个发射堕胎系统，在出现故障的情况下可以允许宇航员组件脱离并重返地球。
The Orion, which is to be flown into space on the new Ares rocket, includes a launch abort system that will allow the crew module to separate and return to earth in case of a malfunction.
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