一、英譯中時倍數減少如何翻譯

1、“減(jian)少(shao)了N–1/N"

2、“減少(shao)到1/N”或“是（原(yuan)來）的1/N”

英語中表示倍數(shu)減小的句型可歸(gui)納為以(yi)下幾種(zhong)。

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（一）decrease+by+N times

decrease+N times

decrease+by+a factor of+N

（decrease為表承減少(shao)意義的動(dong)詞，下同）

這(zhe)三個句型(xing)表(biao)示的意義一(yi)樣，均應譯為(wei)“減少了N–1/N”或“減少到1/N”。例如：

1)Since the introduction of the new technique the switching time of the transistor has been shortened three times.

采用(yong)這項新工藝后，晶體管的開關時間縮短了三(san)分之二(er)。

2)When the voltage is stepped up by 10 times,the strength of the current is stepped-down by 10 times，so that the power remains the same.

當電(dian)壓升高到10倍(bei)時，電(dian)流(liu)強度降低到1/10，因(yin)此(ci)功率保持不變。

3)The water level in winter falls by a factor of three as against the average level.

冬季，水(shui)位(wei)比平均(jun)水(shui)位(wei)下降三分之二。

4)When the signal has increased by 10 times the gain may have been reduced by 8 times.

如果信號(hao)增大9倍，增益就可能降低7/8。

5)The automatic assembly line can shorten ten times the assembling period.

自動裝配線可把裝配工期縮短到原來的(de)1/10。

（二）N times+弱(ruo)比較級+（than）

N times+as+表示(shi)差、少意義的形容詞原級+as

這兩個句(ju)型(xing)的(de)意(yi)義一樣，可譯為“比……N-1/N”或“是(shi)…1/N”。例如：

6)The plastic casing is three times lighter than the steel one.

這種塑料殼(ke)比鋼(gang)殼(ke)輕三分之(zhi)(zhi)二（或：這種塑料殼(ke)的(de)重(zhong)量(liang)是鋼(gang)殼(ke)的(de)三分之(zhi)(zhi)一(yi)）。

二、英語倍數翻譯常見錯誤

1、A是B的N倍大/長…(或者A比B大/長…N-1倍)

一般有以(yi)下(xia)兩種英語表(biao)達方法(fa)：

(1)A is N times as large/long(形容詞/副詞原形)as B.Eg:Asia is four times as large as Europe.

(2)A is N times larger/longer(形(xing)容詞(ci)(ci)/副詞(ci)(ci)比較級)than B.Eg:Asia is four times larger than Europe.

(3)A is N times the size/length(形(xing)容(rong)詞/副詞的名(ming)詞形(xing)式)of B.Eg:Asia is four times the size of Europe.

以上三句例句的中文(wen)翻譯(yi)均為：亞洲是歐洲的四倍(bei)大，或者亞洲比歐洲大三倍(bei)。

2、by和to

(1)動(dong)詞+by+倍數/百(bai)分數/數詞

Eg:The production of grain has been increased by four times this year.

今年糧食產量增加了(le)四倍。

(2)動詞+to+數(shu)詞

Eg:Last year profits rose to$201 million.

去(qu)年利潤增(zeng)長到(dao)2億零100萬美(mei)元(yuan)。

3、by a factor of

詞(ci)組by a factor of在《朗文雙解》中的(de)解釋為(wei)"if something increases or decreases by a factor of N,it increases or decreases by N times."以N倍(bei)的(de)系數增加或減少(shao)。