对该螺桨调速系统进行了理论分析和实验研究。
Theoretical analysis and experiments have been done for the propeller regulating system.
这也是建立螺桨噪声向舱内传播模型的重要依据。
This is also an important basis to establish transmission Mode of Propeller noise to cabin.
涡轮喷气发动机和涡轮螺桨发动机更适用于飞机。
The turbojet and the turboprop are much more satisfactory for airplanes.
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