一架泛美的747听到下面一段英航747(呼号为速鸟206)同法兰克福地面控制对话的时候，喷饭不止。

So it was with some amusement that a Pan am 747 listened to the following exchange between Frankfurt ground control and a British Airways 747, call sign Speedbird 206.

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灵活的控制方式，可作单段速、三段调速、五段调速或无级调速调节风量并附运转/异常指示灯/异常干接点，便于监控；

Flexible control, the motor adjust air flow can be single period of speed , three or five periods of speed. It is also enclosed operation, abnormal indicator and abnormal dry contact for control.

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通过开车试验数据分析， 折线法能够有效地解决冲速段的富油和冲速问题， 实现冲速段的转速控制， 并且具备较强的鲁棒性。

Through analysis of engine ground test data, it's learnt that dogleg method can resolve efficiently the rich oil and overrunning problem, and achieve rotational speed control with strong robustness.

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