fourfold

英 [ˈfɔːfəʊld]

美 [ˈfɔːrfoʊld]

adj.  四倍的；四重的
adv.  四倍地；四重地

BNC.21904 / COCA.23621

英英释义

adj

• four times as great or many
  1. a fourfold increase in the dosage
  Synonym:quadruplefour-fold
• having four units or components
  1. quadruple rhythm has four beats per measure
  2. quadruplex wire
  Synonym:quadruplequadruplicatequadruplexfour-fold

adv

• by a factor of four
  1. the price of gasoline has increased fourfold over the past two years
  Synonym:four times

双语例句

• We have evaluated this clustering for several sample queries that restrict their search to a single group_PDB value ( i.e.," HETATOM") and found that it can improve query performance fourfold.
  我们已经通过几个将搜索限制于单个groupPDB值（即HETATOM）的样例查询评估了这种集群并发现它能够将查询性能提高四倍。
• Last year, Chinese investors bought 73 tonnes of bullion, up fourfold from 18 tonnes in 2007.
  去年，中国投资者购买了73吨黄金，是2007年（18吨）的4倍。
• The supply of fist grew fourfold there.
  那里鱼的供应量增加了三倍。
• Higher demand for solar energy, triggered by concerns about global warming, will drive a fourfold increase in the annual revenues of the global solar equipment industry from$ 20bn last year to$ 90bn in 2010, according to projections published today.
  今日即将发布的预测显示，人们对全球变暖的担忧，导致太阳能需求上升，这将推动全球太阳能设备行业的年收入增长3倍，从去年的200亿美元，到2010年时增至900亿美元。
• The study in the journal Proceedings of the National Academy of Sciences is based on six different surveys on self-reported satisfaction with life since 1990, a period when China's gross domestic product per capita increased fourfold.
  该研究发表在《国家科学院院刊》上，基于自1990年以来6份不同的自我报告的生活满意度调查。1990年以来，中国人均国内生产总值增加了4倍。
• This paper provides a method to test the consistency of the paired fourfold table.
  给出了一种对配对四格表进行一致性检验的检验方法。
• Experiment of fourfold frequency divider proved the feasibility and validity of the method.
  四倍分频器电路演化实验结果验证了该方法的可行性与有效性。
• Since 2000, annual growth rates averaging 10 per cent have raised the GDP fourfold.
  2000年以来，年均10%的增长率使得GDP增加了三倍。
• And Zacchaeus stood, and said unto the Lord; Behold, Lord, the half of my goods I give to the poor; and if I have taken any thing from any man by false accusation, I restore him fourfold.
  撒该站着，对主说，主阿，我把所有的一半给穷人。我若讹诈了谁，就还他四倍。
• The CME expects the volume growth to mirror that of other emerging markets currency contracts, such as the Russian rouble and Brazilian real, which grew fourfold in the first half of last year.
  CME预计，人民币期货合约的交易量增长，将与其他新兴市场货币（如俄罗斯卢布和巴西雷亚尔）期货合约相仿，后者在去年上半年增长了三倍。