four-fold
英 ['fɔːfəʊld]
美
a. 四倍的；四重的；四垒的
adv. 四倍；四重
双语例句
- In the experiment, by using GaAs/ AlGaAs QW VCSEL epitaxial chip, the1 × 3,2 × 2, 3 × 3 ID and 2D arrays have been fabricated by the four-fold proton implantation method, and the characteristics have also been measured experimentally.
实验中，出GaAs／AIGaAs量子阶VCSEL外延片通过四次质子注入工艺制备了IX3、2X2、3X3简单的一维、二维VCSEL列阵器件，并对器件的特性进厅了测量研究。 - An ongoing trial in Uganda shows that coverage rates have increased by from two-fold to four-fold.
目前在乌干达进行的一项试验表明，覆盖率已由两倍增至四倍。 - Suspicious trading ahead of large US mergers and acquisitions has risen four-fold in the past five years, suggesting that the recent M& a boom might have sparked an even bigger increase in insider trading, according to analysis commissioned by the financial times.
一项由英国《金融时报》委托进行的分析显示，在过去五年中，美国大型并购活动前的可疑交易增加了四倍，意味着最近的并购热潮可能引致更多的内幕交易。 - According to the plan, by2020, China will produce ten million tonnes of fuel ethanol and two million tonnes of biodiesel, a four-fold increase on2002 levels.
依据该规划，中国在2020年将生产1000万吨的生物乙醇和200万吨的生物柴油，大概比2002年增长4倍。 - As such, requirements must be considered from this four-fold vantage point, or in some similar manner.
因此，需求必须从四个角度来考虑，或者用一些其它的方式来看。 - Finally, crystallized D-ribose was precipitated by adding four-fold amount of ethanol into the enriched effluent.
解吸液浓缩后加入四倍量乙醇，可得到结晶D-核糖。 - While taking advantage of the results the paper conducts a further four-fold decomposition of output of per labor, the results show that inter-provincial differences of the growth of output maken by technical efficiency is the largest in all factors.
同时利用分解结果进一步进行了劳均产出的四重分解，结果发现，在所有的分解因素中，技术效率所贡献的产出增长率的省际差异是最大的。 - The principal advantage over the old-fashioned machine is a four-fold reduction in weight.
与旧式机器比，主要特点是重量减少了四分之三。 - Application research on four-fold rotary hay dryer control system
四重滚筒式牧草烘干机控制系统应用研究 - The spread between corporate bonds and 10-year Treasury bills, another measure of firm-level risk, increased four-fold over the same period.
同期，公司债与10年期美国国债之间的息差衡量企业层面风险的另一个标准扩大了4倍。