The switching time of the new-type transistor is shortened three times .
The switching time of the new-type transistor is shortened three times .
新型晶体管的开关时间缩短了三分之二。（或---缩短为三分之一。）
The switching time of the new-type transistor is shortened three times .
新型晶体管的开关时间缩短了三分之二。（或---缩短为三分之一。）