对起飞和安静飞行要求更少动力的引擎。
Engines that require less power on takeoff, for quieter flight.
与法拉利不同，劳斯莱斯不能靠引擎声来评价的---要依靠安静的能力和扭矩，这些恰恰是依靠的电机和马达的性能。
Unlike a Ferrari, for example, a Rolls-Royce is defined not by the sound its engine makes, but by silence and torque. Those, as it happens, are precisely the qualities of electric motors.
这只是更加安静，但只是轻微些：风扑打着尾翼和机翼的声音吞没了引擎声。
It's quieter, but only slightly: the wind drowns out the engines as it buffets the tail and wings.
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