With the heightening of the altitude, the turbo supercharger and the diesel associated running curves approach blow vibration borderline, and air compressor's efficiency comes down;

随海拔的增高，涡轮增压器与柴油机的联合运行线逐步逼近喘振边界线，压气机效率下降；

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Environmental conditions have special requirements of power recovery for aeroengine in high altitude, while supercharger technology is an important measure of the aeroengine's power recovery.

高空环境条件对航空发动机提出了功率恢复的特殊要求，而增压技术是实现发动机高海拔功率恢复的重要措施。

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At present, the supercharger technology has become the most effective means of the high-altitude environment engine to restore its power.

目前，增压技术已成为高海拔环境下发动机功率恢复最为有效的技术手段之一。

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