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- Two years later NASA lost the Mars Climate Orbiter and the Mars Polar Lander. 两年后，nasa折损了火星气象卫星和火星极地登陆者号。
- NASA loses radio contact with the Mars Polar Lander moments before the spacecraft enters the Martian atmosphere. 年,在火星极地登陆者号宇宙飞船进入火星大气前的瞬间,美国航空航天局失去了与其的无线电联系。
- A few months later, another Nasa spacecraft, the Mars Polar Lander (MPL), was lost near the planet's South Pole. 几个月以后，另一个美国宇航局的宇宙飞船，火星“太阳号”登陆者在火星的南极失事。
- Reread the case study about the Mars Polar Lander, and you'll see why this is the wrong approach. 再读一遍火星极地登陆者的学习案例，您会发现为什么这样的想法是错误的。
- The last time the space agency tried was in 1999 when the Mars Polar Lander angling for the south pole crashed after prematurely cutting off its engines. 航天局上次进行火星着陆尝试的时间是1999年，当时，火星极地登陆探测器在靠近南极时，因过早关闭发动机而坠毁。
- Three months later, Nasa lost contract with its Polar Lander as it approached touchdown on the frozen South Pole of the planet. 3个月后，航空航天局与其在火星冰冻的南极接近着陆的“极地登陆者”号探测器失去了联系。
- Phoenix was built from a lander that was scrapped after the Polar Lander disaster. “凤凰”号的建造基于极地登陆灾难发生后用拆卸部件组装的登陆器。
- The two systems of government are polar opposites. 这两种政体正好相反。
- After a historic, near perfect landing NASA's Phoenix Mars Lander is getting ready to begin testing the polar surface for signs of water and life. 在一场历史性，接近完美的降落后，NASA的凤凰火星号探测器已经开始准备对火星表面测试水和生命的迹象。
- Mars is the fourth planet in order from the sun. 火星是太阳系的第四颗行星。
- Such a mistake would mar your career. 这种错误会有损你的事业。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- New images sent back by NASA's Phoenix Mars Lander during its first full day operating in the Martian northern polar region showed most of its science instruments in good health. 美国航空航天局所发射的凤凰号火星着陆探测器在火星的北极区域度过了第一天。据其传回的最新图片显示，大多数科学设备运作正常。
- Like the earth, Mars goes round the Sun. 如同地球一样，火星绕太阳转。
- Right now, NASA's Phoenix Lander is using a scoop to dig on Mars. 此时此刻，美国国家航空航天管理局的“凤凰”号着陆器正在利用一把铲子在火星上挖掘。
- Mars is too dry and poor in oxygen. 火星上面过于干燥，并且缺乏氧气。
- Mars(Ares) was the son of Jupiter and Juno. 马尔斯(阿瑞斯)是朱庇特和朱诺的儿子。
- The expressway mars the beauty of the countryside. 这条高速公路破坏了农村的田园美景。
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- Listen. Earth Commander is working on the spaceship for Mars. 听着，地球司令正忙着制造去火星的飞船。
