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1·The case study of a high bypass ratio turbofan engine has verified the feasibility of a three-layer back propagation network.

通过一个高涵道比涡扇发动机故障诊断的实例分析，验证了三层逆传播网络的可行性。

2·As the bypass ratio of turbofan engine is more and more high, fan noise is a more important part to the overall turbofan engine noise.

随着飞机广泛使用的涡轮风扇发动机涵道比的不断提高，风扇噪声在飞机总噪声中占有越来越突出的地位。

3·Ceramic composites, nanotechnology and shape memory alloys figure prominently in the airframe and ultra high bypass ratio propulsion system construction.

陶瓷合成材料、纳米技术和外形记忆合金卓越地体现于其机体和超高涵道比的推进系统结构。

4·Modern low bypass ratio turbofan engine is the heart of the new fighter, whose performance and aerodynamic stability greatly affect the characteristics of the new fighter.

涡扇发动机作为现代战斗机的心脏，其性能和稳定性对战斗机的性能和稳定性能有很大的影响。

5·In a reversal of current design trends the MIT concept increases the bypass ratio by minimizing expansion of the overall diameter of the engine and shrinking the diameter of the jet exhaust instead.

与现行设计趋势相反，麻省的概念通过最小化发动机总体直径的尺度以及相应缩小喷气排放直径来增加涵道比。

6·This paper deals with a new bypass free dry cement producing formula of materials with high sulfur_alkali ratio which has had effect on the clinker formation and roast.

研究了新型干法水泥生产不采用旁路放风而使用高硫碱比物料的工艺配方。

7·The influences of key design and operating parameters, such as bypass air ratio, compressor speed and total air mass flow rate etc.

分析了空气旁通率、压缩机转速及空气质量流量等主要设计及运行参数对干燥性能的影响。

8·The influences of key design and operating parameters, such as bypass air ratio, compressor speed and total air mass flow rate etc. , on the performance of heat pump microwave drier were investigated.

分析了空气旁通率、压缩机转速及空气质量流量等主要设计及运行参数对干燥性能的影响。