The speed of aeroplane engine is variational, so the electricity energy that the aeroplane generator gives off is variational frequency communion electric current.
飞机发动机转速是变化的，因此由飞机发电机发出的电能是变频交流电。
They calculate from the given factors such as weight, height, speed, engine power-the efficiency of a new aeroplane.
他们可以通过所给出的因素计算出一架新飞机的效能，这些因素包括飞机的重量，高度，速度和引擎功率。
Today our programme is about the first aeroplane with an engine.
今天的节目是讲关于第一架带有引擎的飞机。
Engine, heart of aeroplane, is motive power pushing aeroplane and aviation industry forward.
发动机是飞机的“心脏”，是推动飞机和整个航空工业蓬勃发展的源动力。
The computers calculate from the given factors such as weight, height, speed, engine power-the efficiency of a new aeroplane.
电子计算机能够根据各项已知的数据，计算出诸如重量、高度、速度、引擎功率等新型飞机的效能。
The world's first jet-propelled aeroplane, with engine designed by Dr Von Ohain, made its first flight, at Marienehe in North Germany.
世界第一架喷气式飞机在德国北部的马里奈赫作第一次飞行。飞机引擎为冯·奥海因博士所设计。
The world's first jet-propelled aeroplane, with engine designed by Dr Von Ohain, made its first flight, at Marienehe in North Germany.
世界第一架喷气式飞机在德国北部的马里奈赫作第一次飞行。飞机引擎为冯·奥海因博士所设计。
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