NuthCOCA²⁵⁰⁷⁵⁵ 基本例句 努¹⁰⁰ Any interesting science can be done much cheaper with an unmanned robotic spacecraft said chemist Joseph A Nuth from NASA’s Goddard Spaceflight Center. 任何让人感兴趣的科学研究都能用无人航天器进行,从而以更便宜的方式完成。来自 NASA Goddard航天中心的化学专家 Joseph A Nuth说道。 yeeyan