four-fold

英 ['fɔːfəʊld]

美

a. 四倍的；四重的；四垒的
adv. 四倍；四重

双语例句

• A four-fold division has been proposed for the first time and concrete opinions have been put forward for the determination of the location of the boundary between the Ordovician and Sil-urian.
  首次提出了该区志留系四分方案，并为确定奥陶系与志留系的界线位置提出了具体意见。
• In heteroepitaxial growth on ( 001) surface, at the relative positions of the atoms at bridge sites are higher than the positions of the atoms at four-fold hollows.
  研究表明，在（001）表面异质外延生长中处于桥位原子相对位置较高而处于四重稳定位原子位置较低，而在（111）表面则与其相反。
• 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。
• 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。
• Citing a four-fold increase in the number of reported cases of Hepatitis A in Manhattan this year, city health officials are urging physicians to be on the lookout for symptoms in their patients.
  市府卫生官员引述今年所报导曼哈顿患A型肝炎的人数增加了四倍，并促医生注意病人的症状。
• 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。
• Paracetamol doubled the risk, while ibuprofen or aspirin increased it four-fold.
  这篇刊登在欧洲领先生殖医学杂志《人类生殖》的文章指出，扑热息痛对男婴生殖能力造成的风险是一般情况的两倍，而布洛芬或阿司匹林为4倍。
• 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
• Cultural security including four-fold dimensions from the perspective of cultural philosophy.
  从文化哲学的视角看，文化安全包含四重雏度。
• 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。