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The crowd yelled when the hometown team scored a touchdown.

当他们自己的队得了底线, 人群高声呼喊起来。

The requirement of real time is very high, all control tasks ;ire classified into relatively independent subprogramme by executive frequency and function to time-sharing execute.

发动机抓‘制-性要求很高，将发动机的所有控制任，按照任的功能、执行频率、性划相对独立的子程序，按照性要求，执行。