increased by ...times 型

increase to n times（④） 

increase n times／n-fold（⑤） 

increase by n times（⑥） 

increase by a factor of n（⑦） 

以上四式均應譯為：增加到n倍（或：增加n-1倍）。 

Eg. The production of integrated circuits has been increased to three times 
as compared with last year. 
積體電路的產量比去年增加了兩倍。 

Eg. The output of chemical fertilizer has been raised five times as against 
l986． 
化肥產量比1986年增加了4倍。 

Eg. That can increase metabolic rates by two or three times. 
那可使代謝率提高到原來的2倍或3倍（即提高1倍或2倍）。 

Eg. The drain voltage has been increased by a factor of four. 
漏電壓增加了3借（即增加到原來的4倍）。