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1·The supersonic through flow(STF)fan engine is a new concept with many advantages.

超音通流风扇发动机概念新、优点突出。

2·The field replacing and repairing technologies of various stages fan blades for an turbofan engine were studied.

研究了在外场更换和修理某型涡扇发动机各级风扇叶片的技术。

3·This experience will be very helpful in the design of test for high by-pass ratio turbofan engine and propeller-fan engine.

这些经验对于我们今后设计大函道比涡扇发动机和螺浆风扇发动机试车台时，将是十分有用的。

4·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。

5·The F-35B is powered by a single Pratt &Whitney F135 engine driving a Rolls-Royce lift fan.

这架F - 35B战斗机是由普惠公司F135型单一发动机引擎驱动劳斯莱斯升力风扇。

6·One way to increase the efficiency of a high-bypass jet engine is to turn the fan into an open rotor, a bit like returning to propellers, but using two rings of stubby counter-rotating blades.

提高高旁通飞机引擎的方法之一就是把风扇变成开放式旋翼，有点回归于螺旋桨的味道，但要使用两圈粗短的反旋桨叶。

7·The all-new powerplant features a geared architecture allowing the front fan to spin three times slower than the core, thus optimising the speed of each section of the engine.

全新的动力装置以齿轮传动结构为特点，此结构允许前端风扇转速比中心部分慢3倍，优化了发动机各部分的速度。

8·In 2009 GE, working with NASA, America’s space agency, picked up work it had largely set aside in the 1980s on a radically different sort of engine called an unducted fan.

2009年，通用电气和NASA（美国航空航天总署）合作，重新开始19世纪80年代搁置的一项工作，继续一种颠覆传统的无涵道风扇发动机实验。

9·GE says it has shaved 136kg, or 3%, off the weight of an engine that propels the Boeing 787 using a ceramic-composites fan case and blade, a world first.

通用电气表示，他们成功地将发动机重量减轻了3%，约136千克，此举促使波音787世界首次使用合成陶瓷风扇机箱和涡轮叶片。

10·He turned on the fan after he'd started up the engine, to give it some heat-but then it was a mammal, he figured, with fur, and it could warm itself.

汽车发动着后，他打开暖风，给箱子里的动物增加点热量——不过，他想这是哺乳动物，有皮毛，而且它自己能够取暖。