音调范围
For the control response, in the whole flight speed range, the attitude angles of autogyro change small, especially the pitch angle.
全飞行速度范围内姿态变化很小,尤其是纵向俯仰角;
Also show her how to make noises with other things that provide a wide range of variations in pitch, such as a bell, a whistle, keys on a ring or a music box.
还教她如何使噪音和其他的东西,提供一系列的变化,如一个铃铛球场,哨子,把戒指或一个音乐盒。
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