The impulsive force of breath is the motive force of sound production when a person is singing; so it is the key link in vocal music training.
气息力是人在歌唱时的发声动力，气息力的训练是声乐训练的重要环节。
The sound field of the Continuous Wave and the Impulsive Wave is described by the directivity function.
用指向性函数分别描述了医用线列阵单频波和宽带波声场。
The sound field of the Continuous Wave and the Impulsive Wave is described by the directivity function.
用指向性函数分别描述了医用线列阵单频波和宽带波声场。
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