1. Ground controllers will then fire the booster, sending the satellite into its proper orbit. 届时地面控制人员将点燃助推器，把卫星送入预定轨道。
2. It is the language of transport: most airline pilots and air traffic controllers use it. 它是交通工具的语言：大多数飞行员和空中交通管制员都使用它。
3. Apparently, there were some low clouds in the area, but mostly it was just miscommunication between the pilots and the air traffic controllers. 显然，该地区有一些低空云层，但主要是飞行员和空中交通管制员之间的沟通失误。
4. The association also said that standards of training must be raised among flight crews and air traffic controllers as the sky has become ever more crowded. 该协会还表示，必须提高机组人员和空中交通管制员的培训标准，因为空中交通越来越拥挤。
5. Many people think that ATC consists of a row of controllers sitting in front of their radar screens at the nation's airports, telling arriving and departing traffic what to do. 许多人认为，空中交通管制系统是由一排坐在美国机场雷达屏幕前的管制员组成的，他们告诉到达和离开的航班该做什么。
