NASA plans to test a full-size solar sail for chemical-free propulsion and a deep space atomic clock.
此外，美国国家航空航天局（下文简称NASA）还计划测试一个完整尺寸的太阳帆，为航天器提供绿色推进能源，以及测试一个深空原子钟。
No free man would willingly sign aboard a ship whose captain spoke openly of his intent to sail into the Smoking Sea.
没有哪个自由人会愿意乘一艘船长公然声称要起航去“烟海”的船。
No free man would willingly sign aboard a ship whose captain spoke openly of his intent to sail into the Smoking Sea.
没有哪个自由人会愿意乘一艘船长公然声称要起航去“烟海”的船。
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