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；
2
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。
3
At present, the supercharger technology has become the most effective means of the high-altitude environment engine to restore its power.