The GPS IIF team completed a series of acoustic tests that replicate the noise levels expected during the spacecraft's launch into orbit.
GPSIIF团队完成了一系列声音测试，复制了太空船进入轨道预计将产生的噪音水平。
Russia has been celebrating the 50th anniversary of the first human space flight when the Soviet cosmonaut Yuri Gagarin completed a single orbit of Earth.
俄罗斯将庆祝人类首航太空50周年，苏维埃宇航员尤里加加林完成第一次太空飞行任务。
In low Earth orbit, say 220 miles (355 km) up, where most human space travel takes place, a single circuit is completed in a much brisker 90 minutes.
在近地轨道，例如高于地球表面220英里(355公里)处大多数人类太空旅行发生的地方，运行一圈则需要更短的90分钟。
When the appointed time came to blast Yuri Gagarin into orbit, he simply pushed a button that completed the ignition circuit and watched the motors start.
当推送尤里·加加林进入轨道的预定时刻来临之际，他只是简单地按下一个按钮闭合点火电路并看着发动机启动。
Judging from the satellite system, the major risk is whether the orbit changes can be completed precisely and promptly.
从卫星系统的角度看，主要风险在于变轨能否精确和迅速地完成。
Whether the interception mission successfully completed is depended on the amount of fuel consumption in the interception process, thus orbit optimization and control is of great significance.
拦截过程燃料消耗的多少很大程度上决定了拦截任务是否能够圆满完成，因此拦截轨道的优化和控制具有重要的意义。
After comparing all kinds of control systems, the orbit cut system control part design has completed by taking PLC as controller.
在对各种控制系统进行比较之后，选择plc作为控制器，完成了轨道切换系统控制部分的设计。
The problems of CDAS for C satellite were solved and adaptability adjustment was completed during the periods of on-orbit test and experimental operation.
在轨测试和试运行期间，C星的CDAS不仅解决暴露的问题，而且进行适应性调整。
The problems of CDAS for C satellite were solved and adaptability adjustment was completed during the periods of on-orbit test and experimental operation.
在轨测试和试运行期间，C星的CDAS不仅解决暴露的问题，而且进行适应性调整。
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