执行后退侧滚时，请控制主旋翼的螺距，以便维持固定的高度及速度。
Use collective control to maintain constant altitude and speed. Fly away from the maneuver straight and level.
在执行tailfilename时，tail命令显示指定的文件中最新的几行，然后退出。这对于监视日志文件更新帮助不大。
When executed as tail filename, the tail command exits after displaying the last lines from the specified file, which isn't all that helpful when you want to monitor updates to a log file.
注意，实用程序(除了expire之外)实际上不启动J VM，它们执行所需的操作，然后退出，并不运行类。
Note that none of the utilities (apart from expire) actually start the JVM, so they perform the action required and then exit without running a class.
在Windows和Linux 中，等待函数会挂起当前进程的执行，直到它完成等待，不过，在 Windows中可以选择在指定的时间后退出。
Wait functions, in both Windows and Linux, suspend the execution of the current process until it completes, but in Windows there is an option to exit by specifying a time value.
随着NASA宣告航天飞机机队将在执行完最后三次飞行任务后退役，亚特兰蒂斯号于东部时间下午两点二十分在发动机的轰鸣声中拔地而起，飞离濒海发射台。
With NASA bracing for the looming retirement of the shuttle fleet after a final three missions, Atlantis roared to life and rocketed away from its seaside pad at 2:20 p.m. Eastern time.
第五级属于高级程度，使操控者有能力执行基础的后退飞行。
The level of a pilot capable of performing beyond the basics of Backward Flight.
当直升机到达操控者的正前方时，机体刚好成为倒飞后退飞行，继续执行侧滚的动作，等到直升机通过操控者的正前方以后，机身便恢复为正飞后退飞行。
The helicopter should be flying inverted and backward as it passes in front of the pilot, the helicopter should continue to roll back to upright after is passes in front of the pilot.
当直升机到达操控者的正前方时，机体刚好成为倒飞后退飞行，继续执行侧滚的动作，等到直升机通过操控者的正前方以后，机身便恢复为正飞后退飞行。
The helicopter should be flying inverted and backward as it passes in front of the pilot, the helicopter should continue to roll back to upright after is passes in front of the pilot.
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