这个自动控制飞机的任务是研究太平洋和大西洋上空的大气情况，它有着空前的观测范围和续航能力。
The robotic plane's mission is to study the atmosphere over the Atlantic and Pacific Oceans with unprecedented range and endurance.
电厂在开机时直到电厂达到自动控制工作范围的负荷水平前，控制功能须手动完成。
The control function must be accomplished manually during plant startup until the plant is at a load level that is in the operating range of the automatic controls.
定时装置0-30分钟范围内可自由选择， 实现工作过程的自动控制。
Timing devices with 0-30minutes are free to choose , and the process of automatic.
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