将发动机置入机身上部也能够提高燃油效率和降低噪声。
Gains in fuel efficiency and noise reduction could also come from embedding the engines into the topside of the fuselage.
它有一个积极的4.07：1第一齿轮比，提供强大的发射，而且还提供高过载率的降低发动机转速，并提供更好的燃油效率。
It has an aggressive 4.07:1 first gear ratio that delivers strong launches, but also provides tall overdrive ratios that decrease engine RPM and provide better fuel efficiency.
该方案充分利用超级电容的特性，能够使发动机工作在高效率点，降低发动机油耗。
The program takes full advantage of the characteristics of ultra capacitor, so the engine can work at high efficiency, the lower engine oil consumption.
发动机风扇的设计原则是在满足发动机冷却能力的前提下，提高风扇效率，降低风扇噪声。
The design principles of engine cooling fans are meeting the cooling demands of a engine, improving the efficiency of fans and reducing the fan noise.
本发明发动机能够承受大压 缩力，降低发动机因燃料燃烧所产生的爆振力，减少机械磨损，提高机械效率。
The engine can bear big compressive force, reduce the explosive vibration force of the engine caused by fuel burning, decrease the mechanical wear and improve the mechanical efficiency.
本发明发动机能够承受大压 缩力，降低发动机因燃料燃烧所产生的爆振力，减少机械磨损，提高机械效率。
The engine can bear big compressive force, reduce the explosive vibration force of the engine caused by fuel burning, decrease the mechanical wear and improve the mechanical efficiency.
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