multiplier
/ˈmʌltɪplaɪə(r)/noun
1- a person or thing that multiplies增加者。
1.1
- a quantity by which a given number (the multiplicand) is to be multiplied乘数。
1.2
- Economics a factor by which an increment of income exceeds the resulting increment of saving or investment【经济】乘（或倍）数; 收益增值率。
1.3
- a device for increasing by repetition the intensity of an electric current, force, etc. to a measurable level倍增器, 扩量（程）器。
1.4
- a type of fishing reel with a geared spool齿轮轴钓鱼线。