盖尔环形山最明显的特征就是陨坑中间突兀的耸立着一座塔状的岩堆。
This site's most obvious feature is a towering pile of materials that sits smack in the middle of the wide crater.
在经过很多研究以后，科学家们确认马沃斯山谷拥有火星上最为丰富的粘土特征，并且还有一系列不同组成的矿物层可供研究，这点和盖尔环形山颇为相似。
Multiple studies have confirmed that it has the planet's strongest clay signature, and, like Gale, an array of intriguing mineral layers with different composition.
在经过好几年的刻苦研究和讨论以后，NASA的科学家已经将他们一开始的50多个登陆点削减到了4个，它们分别是：埃伯斯·沃德环形山、霍尔登环形山、马沃斯山谷以及盖尔环形山。
After several years of painstaking research and debate, NASA scientists whittled down their initial list of over 50 sites to four - Eberswalde Crater, Holden Crater, Mawrth Vallis, and Gale Crater.
在经过好几年的刻苦研究和讨论以后，NASA的科学家已经将他们一开始的50多个登陆点削减到了4个，它们分别是：埃伯斯·沃德环形山、霍尔登环形山、马沃斯山谷以及盖尔环形山。
After several years of painstaking research and debate, NASA scientists whittled down their initial list of over 50 sites to four — Eberswalde Crater, Holden Crater, Mawrth Vallis, and Gale Crater.
在经过好几年的刻苦研究和讨论以后，NASA的科学家已经将他们一开始的50多个登陆点削减到了4个，它们分别是：埃伯斯·沃德环形山、霍尔登环形山、马沃斯山谷以及盖尔环形山。
After several years of painstaking research and debate, NASA scientists whittled down their initial list of over 50 sites to four — Eberswalde Crater, Holden Crater, Mawrth Vallis, and Gale Crater.
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