planum

基本解释

Despite being separated by thousands of kilometers, Martian soils from Gusev Crater and Meridiani Planum have proved broadly similar in parts—rich in chlorine and sulfur.
尽管古瑟夫环形山和子午线平原相距数千公里，但业已证实：来自两地的火星土壤有些成分极其相似—均富含氯和硫磺。
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Landing in 2004 in Meridiani Planum, the robotic Opportunity has embarked on its longest and most dangerous trek yet, now aiming to reach large Endeavor Crater sometime next year.
2004年着陆于子午平原，机器人机遇号开始了它最长最危险的游历，目前它正意图在明年某个时候到达巨大的奋进环形山。
On the other side of the planet, Spirit's twin, Opportunity, has been having its own solar-powered adventures, driving around and analysing rocky features on an expanse called the Meridiani Planum.
在火星的另一端，勇气号的“好兄弟”—机会号已经靠自己的太阳能发电装置在一个叫"子午面"(Meridiani Planum)的宽阔地域工作了许久，四处探测，并分析岩石的特征。