倍

• It involves more than twice the necessary exertion .
  这使得他们所用的力量是必需的两倍。
• It covers about an octave .
  它大约占一个倍频程。
• Length of the span is equal to 10 times the depth of the beam .
  跨度等于梁的深度的10倍。
• His salary is treble mine .
  他的薪水是我的三倍。
• His awareness of her was abruptly increased tenfold .
  他对她的好感突然一下子增加了十倍。
• Our visits to the theatre made the holiday more amusing .
  我们因看了几场戏而使假日倍添情趣。
• Ten is the double of five .
  十是五的两倍。
• If sufficient trap is added, it may double the rate .
  如果加入足够的捕捉剂，速度便可增加两倍。
• An exact multiple of the haploid number is called euploid .
  确切的单倍体数目倍增被称为整倍体。
• The power utilities will need to quadruple their capacity .
  电力事业必须使它们的能力增加三倍。