repetitions per second造句

• Participants were instructed to repeat the word  the at a rate of approximately two repetitions per second.
• This allows for rapid note repetition common in the ornamentation of music designed to disguise the short duration of treble notes that is typical of the plucked string harpsichord and the early piano whose light, low tension stringing has not the power we expect from a piano of today . ( Despite the power and longevity of treble notes in a modern grand, its finely crafted complex action allows up to twenty note repetitions per second, which performance and skill of execution is tested in works such as those of Granados and Albeniz ).