Lesson6Chapter5PartI数词的翻译题库.pptVIP

The atomic weight of helium is four times heavier than that of hydrogen. 氦原子量比氢原子量重3倍。 In rolling bearing the starting friction is about twice the running friction. 滚动轴承的启动摩擦大概是转动摩擦的2倍。 The average energy consumed per head of population in the U.S is over 100 times that of the world’s poorest countries. 按人口计算，美国的平均耗能量是世界上最贫穷国家耗能量的一百倍以上。 (3) increase + by a factor of n “增加了 (N-1)倍” 或 “增加到N倍” The current has increased by a factor of three. 电流增加了2倍。 (4) be + N times + over/upon “增加了 (N-1)倍” 或 “增加到N倍”。 This year the value of our industrial output is five times over that of 1952. 今年，我国的工业产值比1952年增加了四倍。 (5) as many/large/heavy/much……again as “是……两倍” 或“比……大/多/重一倍”。 The driving gear turns as fast again as the driven gear. 主动齿轮的转速为从动齿轮的两倍。 (6) double/twice “是……两倍”或“比……大/多/重一倍”。 Every 10 months the number of people with AIDS doubles in U.S. 在美国，患艾滋病的人数每十个月就增加一倍。 (7) triple/treble “三倍于……”或“(比原来)增加两倍”。例如： Between 1950 and 1973 the number of telephones in the USA more than tripled , with an addition of 90 million telephones. 1950年至1973年间, 美国的电话机增加了九千万只, 总数比原来增加了两倍以上。 quadruple 四倍， quintuple 五倍， sextuple 六倍， septuple 七倍，octuple 八倍 2) 倍数减少 “减少了几分之几”或 “减少到原来的几分之几”。 decrease + by + N times （N=3） decrease + N times decrease + by + a factor of + N N times adj.比较级+ than V.→ reduce. shorten, weaken, go down , fall The leads of the new condenser are shortened by six times. 新型电容器的引线缩短了5/6。 The operation of cost decreased by five times. 成本运行降至1/5。 The loss of electricity was reduced by a factor of four. 电损减少了3/4。 The pipe is four times lighter than that one. 这根管子重量是那根的1/4。 4 百分数的译法 1) 表示增减意义的v. + by + n% : 照译 2)表示减少意义的v. + to + n%: 减少到 3) n%+比较级+than : 照译 4) n%+比较级+n.:照译 5) a (n) n%+ increase : 照译 6) n%+ of + n./pron.:是…… n% Weld strength can be increased by 45 percent. 焊接强度可增加45%。 Tests have shown that the energy consuming can be reduced by 30 percent. 试验证明，能量消耗可减低30%。 The loss of energy has been reduced to less than 10 percent. 能量损耗可减至不足10%。 Its grain output was 18 percent h