这样舷梯将被用于防止发动机喘振，但是入口也许被设计防止此。

Such ramps would be used to prevent engine surge, but the intake itself may be designed to prevent this.

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喘振，由于通过发动机的压气机的气流的突然改变，而导致压气机不能压缩空气的现象。

SURGE, A sudden change in the airflow through the compressor resulting in the compressor not being able compress the airflow.

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最后，论文还研究了某型压气机的过失速状态，确定了由发动机设计参数判断失稳后是发生喘振还是旋转失速的方法。

Post-stall behavior is simulated in the paper to estimate whether surge or rotating stall initiate with engine design parameters.

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