(一)A is n times as small (light，slow，…)as B.(12). Z&gM7Zo8
A is n times smaller (lighter， slower，…) than B.(13). F3$@6J8<[z
以上两句均应译为：A的大小(重量，速度，……)是B的1/n[或A比B小(轻，慢，……)(n-1)/n]. ^W|B Xxo
Eg. The hydrogen atom is near1y l6 times as light as the oxygen atom. C
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氢原子的重量约为氧原子的1/16(即比氧原子约轻15/16)。 Fp52 |w_
Eg. This sort of membrane is twice thinner than ordinary paper. n4 Od4& r
这种薄膜比普通纸张要薄一半(即是普通纸厚度的1/2)。 ^a&-GhX;
注：当相比的对象B很明显时，than/as B常被省去。 +.gM "JV
(二)decrease n times/n——fold (14). $
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decrease by n times(15). +cS%b}O`$
decrease by a factor of n(16). ))Ws{
以上三式均译为：减少到1/n[或：减少(n-1)/n]. tW4|\-E"s4
decrease常被reduce， shorten， go/slow down等词替代。 % c[Q_
Eg. Switching time of the new-type transistor is shortened 3 times. =\;yxl
新型晶体管的开关时间缩短了1/3(即缩短到2/3)。 :<$B o
Eg. When the voltage is stepped up by ten times， the strength of the currentis stepped down by ten times. 8YNii-pl
电压升高9倍，电流强度便降低9/10(即90%)。 ts
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Eg. The equipment reduced the error probability by a factor of 5. r[>4b}4s
该设备误差概率降低了4/5. QJ{to%
(三)There is a n-fold decrease/reduction… . 6*3J3Lc_<
应译为：减至1/n [或：减少(n一1)/n].(17). 9Yih%d,
这个句型还有其它一些形式， "YLH]9"=
Eg. A rapid decrease by a factor of 7 was observed. V_Owi5h
发现迅速减少到1/7. ="fq.Tt
Eg. The principal advantage of the products is a two-fold reduction inweight. ? U~}uG^
这些产品的主要优点是重量减轻了1/2. QIl
