由于立方体卫星体积小、重量轻，将它们送入地球轨道的成本比传统通信或GPS卫星要低得多。
Because they're so small and light, it costs much less to get a CubeSat into Earth's orbit than a traditional communications or GPS satellite.
航天器的重量和轨道不同，所需火箭提供的能量和速度也各不相同，各种轨道与速度之间有一定的对应关系。
And the weight of the spacecraft orbit, the rocket needed to provide energy and speed varies, with a variety of track between the speed of a certain relationship.
因为火箭的额外重量，火箭和卫星没能到达预定轨道，随后南部海域坠毁。
Because of the additional weight of the fairing, the rocket and satellite failed to reach orbit and subsequently plummeted into the Southern Ocean.
科学家们认为这个速度加上行星的重量屈服于强大的重力牵引力，可以改变行星的运行轨道。
Scientists think that this speed coupled with the planet's heft yields strong gravitational tugs that can alter the planets orbit.
动态电子轨道衡(亦称自动轨道衡)是自动计量行进中的货车车辆重量的设备。
In-motion electronic track weighing scale (automatic track weighing scale) is a piece of equipment that automatically weighs wagons loads in motion.
负责该任务的科学家说重量只有75磅的“猎兔犬2号”可能已经被火星表面上经常刮过的尘云和风暴吹离了轨道。
Mission scientists say Beagle 2, which weighs just 75 pounds, might have been blown off course by dust clouds and storms which regularly sweep the surface of Mars.
负责该任务的科学家说重量只有75磅的“猎兔犬2号”可能已经被火星表面上经常刮过的尘云和风暴吹离了轨道。
Mission scientists say Beagle 2, which weighs just 75 pounds, might have been blown off course by dust clouds and storms which regularly sweep the surface of Mars.
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