The Mars 2020 rover, which sets off for the Red Planet next year, will not only search for traces of ancient life, but pave the way for future human missions, NASA scientists said Friday as they unveiled the vehicle.
NASA的科學(xué)家周五揭曉了2020年火星漫游車。該漫游車將在今年啟航前往火星，不僅會追尋遠古生命的蹤跡，還會為未來人類的使命鋪路。

The rover has been constructed in a large, sterile room at the Jet Propulsion Laboratory in Pasadena, near Los Angeles, where its driving equipment was given its first successful test last week.
漫游車在洛杉磯附近的帕薩迪納噴氣推進實驗室的大型無菌室建造完成，漫游車的駕駛設(shè)備也于上周在此處完成了首次成功測試。

Shown to invited journalists on Friday, it is scheduled to leave Earth in July 2020 from Florida's Cape Canaveral, becoming the fifth US rover to land on Mars seven months later in February.
漫游車周五被展示給了受邀記者，該車計劃于2020年7月從佛羅里達的卡納維拉爾角離開地球，飛行七個月后在火星登陸，將成為美國第五臺登陸火星的漫游車。

"It's designed to seek the signs of life, so we're carrying a number of different instruments that will help us understand the geological and chemical context on the surface of Mars," deputy mission leader Matt Wallace told AFP.
火星任務(wù)的副主管馬特·華萊士告訴法新社，“漫游車旨在尋找生命跡象，因此我們要攜帶很多不同的儀器，這些儀器會幫助我們理解火星表面的地質(zhì)和化學(xué)環(huán)境?！?/div>

圖片來源：NASA

Among the devices on board the rover are 23 cameras, two "ears" that will allow it to listen to Martian winds, and lasers used for chemical analysis.
漫游車上的設(shè)備包括23個攝像頭、兩只能聽見火星風(fēng)的“耳朵”，以及用于化學(xué)分析的激光器。

Approximately the size of a car, the rover is equipped with six wheels like its predecessor Curiosity, allowing it to traverse rocky terrain.
漫游車的尺寸和汽車差不多，和其前輩“好奇號”一樣裝備了六個輪子，這樣就能在巖石地帶上行進。

Speed is not a priority for the vehicle, which only has to cover around 200 yards (180 metres) per Martian day - approximately the same as a day on Earth.
漫游車的速度不是最重要的，它每個火星日（約等于一個地球日）只能行進大約200碼（180米）。

Fuelled by a miniature nuclear reactor, Mars 2020 has seven-foot-long (two metre) articulated arms and a drill to crack open rock samples in locations scientists identify as potentially suitable for life.
火星2020年漫游車的燃料由一個小型核反應(yīng)堆提供，它擁有7英尺長（2米）的鉸接手臂以及一個鉆頭。鉆頭可以鉆開科學(xué)家們認為可能適合生命生存的地點的巖石樣本。

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翻譯：李然