reduce by a factor of 3 to 4怎么翻译

reduce by a factor of 3 to 4怎么翻译 英语翻译是2倍还是1/2?原句是：is to reduce the beam width in the azimuth plane by a factor of 2 英语翻译By combining the optical coupling improvements discussedin Se:.XVI,a large increase in the array imagingperformance can be expected.For example,Eq.(69)showed that proper use of microlenses could reduce thedark current by a factor of 40.As Nastia Luikin can reduce her rotational inertia by a factor of about 3.3when changing from a straight position to a tuck position.If it takes her 0.4 s to makeone full rotation (or revolution) in a straight position,what is her angular speed when in 那个horizontal stretch by a factor of 是说横纵坐标那个horizontal stretch by a factor of 4是什么意思?是说横纵坐标都乘4吗,还是扩大移动什么的, Which has a high infection rate and could reduce wheat output by half.output by half 有关reduce by的 用法 reduce of,reduce by,reduce to,reduce at分别是什么?都有什么区别? a factor of It has been increased by a factor of 4 since 1995.怎么翻译? the force is smaller by a factor of N如何翻译啊 The power factor in an ac circuit is improved by connecting a capacitor reduce by和reduce to有什么区别? reduce to和reduce by有啥区别 reduce by 0.5%和reduce 0.5%的区别RT 关于a factor of的意思A rapid decrease by a factor of 7 was observed.这里的decrease by a factor of 7 究竟是“减少到1/7”还是“减少了1/7”a factor of 7究竟又是什么意思? 谁能翻译以下句子(数学倍数方面的东西):A rapid decrease by a factor of 7 was observed. reduce by 70%应该怎样翻译