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单位符号的英语说法 -引用

原创 IT生活 作者:leonaifei 时间:2007-09-05 12:40:59 0 删除 编辑

1/2 = a (or one) half
1/3 = a (or one) third
1/4 = a quarter or one fourth
1/5 = a (or one) fifth
2/3 = two thirds
9/10 = nine tenths
53/4 = five and three quarters
15/64= fifteen over (or by) sixty-four
15% = fifteen per cent
4‰ = four per mill

R’ R prime
R” R double prime, R second prime
R1 R sub one
100° C one hundred degrees Centigrade
+ plus; positive
- minus; negative
´ multiplied by; times
¸ divided by
± plus or minus
= is equal to; equals
º is identically equal to
» is approximately equal to
( ) round brackets; parentheses
[ ] square brackets
{ } braces
a
>>b a is much greater than b
a³ b a is greater than or equal to b
aµ b a varies directly as b
lognX logX to the base n
the cubic root of x
the nth root of x
x2 x square, x squared, the square of x
Xn X to n factors; the nth power of x; x to the power n
x -8 x to the minus eighth power
ï xï the absolute value of x
the mean value of X
the sum of the terms indicated; summation of
D x or d x the increment of x
dx differential x
dy / dx the first derivative of y with respect to x
ò integral
¥ infinity
1/2 a half; one half
2/3 two thirds
5/123 five over a hundred and twenty-three
eight and three over fourths; eight and three quarters
0.01 O point O one; zero point zero one; nought point nought one
6 % 6 percent
3‰ 3 per mille
2 : 3 the ratio of two to three
r=xd r equals x multiplied by d
5´ 2=10 five times two equals ten
x3/8=y2 x raised to the third power divided by eight equals y squared
(a+b-c´ d)/e=f a plus b minus c multiplied by d, all divided by e equals f
y = (Wt-W)/x y equals W sub t minus W over x

符号的英文读法

~ tilde
# Pound(USA) / Hash(UK)
period 句号
≈ is approximately equal to
约等于号 comma 逗号 is less than 小于号 colon 冒号 is more than 大于号 semicolon 分号 is not less than 不小于号 exclamation mark 惊叹号 is not more than 不大于号 question mark 问号
≤ is less than or equal to
小于或等于号 hyphen 连字符
≥ is more than or equal to
大于或等于号
' apostrophe
省略号;所有格符号 per cent 百分之
- dash
破折号
‰ per mill
千分之
' ' single quotation marks
单引号
∞ infinity
无限大号
double quotation marks
双引号 varies as 成比例
( ) parentheses
圆括号
√ (square) root
平方根
[ ] square brackets
方括号 since; because 因为 French quotes 法文引号;书名号 hence 所以
... ellipsis
省略号 equals, as (proportion) 等于,成比例
¨ tandem colon
双点号 angle
ditto
双点号 semicircle 半圆 parallel 双线号 circle virgule 斜线号 circumference 圆周 ampersand = and
π pi
圆周率 swung dash 代字号 triangle 三角形
§ section; division
分节号 perpendicular to 垂直于 arrow 箭号;参见号 union of 并,合集 plus 加号;正号 intersection of 交,通集 minus 减号;负号
∫ the integral of …
的积分
± plus or minus
正负号
( ∑ sigma) summation of
总和
× is multiplied by
乘号
° degree

÷ is divided by
除号
′ minute
is equal to 等于号
″ second

≠ is not equal to
不等于号 number … is equivalent to 全等于号 Celsius system 摄氏度 is equal to or approximately equal to 等于或约等于号 at 单价

Pronunciation of Numerals 数词的读法
----------------------------------------------------------------------
1.Cardinals and Ordinals
基数和序数

(1)100
以内的数词基数 序数
Roman Arabic
Numerals Numerals
罗马数字 阿拉伯数字 读法 数码 读法
I 1 one 1st the first
II 2 two 2nd the second
III 3 three 3rd the third
IV 4 four 4th the fourth
V 5 five 5th the fifth
VI 6 six 6th the sixth
VII 7 seven 7th the seventh
VIII 8 eight 8th the eighth
IX 9 nine 9th the ninth
X 10 ten 10th the tenth
XI 11 eleven 11th the eleventh
XII 12 twelve 12th the twelfth
XIII 13 thirteen 13th the thirteenth
XIV 14 fourteen 14th the fourteenth
XV 15 fifteen 15th the fifteenth
XVI 16 sixteen 16th the sixteenth
XVII 17 seventeen 17th the seventeenth
XVIII 18 eighteen 18th the eighteenth
XIX 19 nineteen 19th the nineteenth
XX 20 twenty 20th the twentieth
XXI 21 twenty-one 21st the twenty-first
XXV 25 twenty-five 25th the twenty-fifth
XXX 30 thirty 30th the thirtieth
XL 40 forty 40th the fortieth
L 50 fifty 50th the fiftieth
LX 60 sixty 60th the sixtieth
LXX 70 seventy 70th the seventieth
LXXX 80 eighty 80th the eightieth
XC 90 ninety 90th the ninetieth
IC 99 ninety-nine 99th the ninety-ninth
C 100 one hundred 100th the hundredth
CII 102 a hundred 102nd the (one) hundred
and two and second
246 two hundred and forty-six
751 seven hundred and fifty-one

(2)1000
以上的数词
1,000 = one thousand
一千
10,000 = ten thousand
一万
100,000 = one hundred thousand
十万
1,000,000 = one million
一百万
10,000,000 = ten million
一千万
100,000,000=one hundred million
一亿

(3)
十亿以上的大数,英美有不同的读法:英国 美国十亿 one thousand million = one billion百亿 ten thousand million = ten billion千亿 one hundred thousand million = one hundred billion万亿 one billion = one trillion

2.Fractions
分数通常将分子读为基数,将分母读为序数。
1/2 = a (or one) half
1/3 = a (or one) third
1/4 = a quarter or one fouth
1/5 = a (or one) fifth
2/3 = two thirds
9/10 = nine tenths
53/4 = five and three quarters
15/64= fifteen over (or by) sixty-four
15% = fifteen per cent
4‰ = four per mill

3.Decimals
小数

0.4 = zero (or nought) point four
.01 = point (or decimal) nought one
12.34 = twelve point three four
567.809 = five hundred and sixty-seven point eight nought nine
30.45 = thirty point four five, five recurring
0.3% = decimal three percent

4.Mathematic Forms
数学式

(1) Addition
加法
1+2=3 One and two are three.
2+3=5 Two plus three equals five.
4+0=4 Four and nought is equal to four.
45+70+152=267 45,70 and 152 added are (or make) 267
the sum (or total) is 267.
演算时的读法: Three and seven are ten; I write(or I write down,or I put down)a nought
and carry one. Four and one that I carry are five, and eight make thirteen,and three
sixteen; I write down six and carry one. One and one (that I carry) are two; I put down
two.- The sum (or total, or the result of the addition) is two hundred and sixty. 37,80
and 143 added together, and(or make) 260.

(2)Subtraction
减法
9-4=5 Nine minus four equals (or is equal to) five.
15-7=8 Seven from fifteen leaves eight.
23,654-8,175=15,479 8,175 (take or subtracted) from 23,654 leaves 15,479. The difference
(or The remainder) is 15,479.
Nine from five won`t go.
演算时的读法:Nought from nought (leaves) nought. One from one leaves nought (or nothing).
Two from three (leaves) one. I can`t take (or subtract) five from four; I must borrow ten;
five from fourteen leaves nine.- The difference (or The remainder) is nine thousand one
hundred. 5210 (take or substracted) from 14,310 leaves 9,100.

(3)Multiplication
乘法
1×0=0 One multiplied by nought equals nought.
1×1=1 Once one is one.
2×1=2 Twice one is two.
3×5=15 Three times five is fifteen
6×0=0 Multiply six by nothing, and the result is nothing.
演算时的读法: Five times nine (or Nine multiplied by five) are forty-five; I put down five
and carry four. Five times seven are thirty-five and four (that I carry) are thirty-nine; I write
down nine and carry three. Five times six make thirty and three (that I carry) thirty-three; I put
down thirty-three.
Eight times nine (or Eight nine) are seven two; I write two and carry seven. Eight sevens make
fifty-six and seven are sixty-three. I put down three and carry six. Eight sixes make forty-eight
and six fifty-four; I write down fifty-four.
I now add the partial results (or products) Five. Two and nine are eleven. Three and three are
six and one are seven. Four and three make seven. Five.

(4)Division
除法
9÷3=3 Nine divided by three maks (or is equal to) three.
20÷5=4 Five into twenty goes four times.
4567÷23=198
13 23 into 4567 goes 198 times, and 13 remainder.
The quctient is 198, and 13 remainder.
演算时的读法: Fifteen into thirteen won`t go ; fifteen into one hundred and thirty-eight goes nine
times; nine times fifteen are one hundred and threty-five; one hundred and thirty-five from one hundred
and thirty-eight leaves three; I bring down seven; fifteen into thirty-seven goes twice; twice fifteen
are thirty; thirty from thirty-seven leaves seven.
  The (exact) quotient is ninety-two, and seven remainder; 15 into 1387 goes 92 times, and 7 remainder.

5.Time
时间

(1)Hours
钟点
2h.5'8" = two hours five minutes eight seconds 2
小时58
6.18 = six eighteen 6
18
8.30 a.m.= eight thirty a.m.['ei 'em]
上午830
the 6.05 p.m.train = the six (nought) five p.m.['pi:'em] train
下午6时零5分列车又二十四小时混合制的写法和读法如下:
0900 = 0 nine hunderd (
上午)9
0910 = 0 nine ten (
上午)910
1300 = thirteen hundred 13
(下午1)
1525 = fifteen twenty-five 15
25(下午325)
2000 = twenty hundred 20
(下午8)
at 5 o'c =at five o'clock
五点钟

(2)Date
日期
Oct.1 =October first 10
1
Oct.1st = October the first 10
1
Ist Oct. 1949 = teh first of October, nineteen forty-nine 1949
101
3/5 = [
]May (the) third 53日;[]March fifth 35
[
附注]联系日期前置词用on.

(3)Year
年份
684 B.C. =Six eighty-four B.C. ['bi:'si:]
公元前684
1960 = nineteen sixty; nineteen hundred and sixty
19- nineteen something
1950's nineteen fifties
二十世纪五十年代
[
附注]联系年份的前置词用in.


6.Numbers
号码

(1)Telephones Numbers
 电话号码
1023 = one O two three; ten twenty-three
1227 = one double two (or two two) seven
0386 = O three eight six
0096 = double O(or O O )nine six
7000 = seven O double O = seven thousand
No.26= Number 26
26
Room 201 = Room two O one
201房间
10 Changan Street = Ten Changan Street
长安街10

(2)Writings
书籍作品
Vol.I = Volume one (or the first volume)
卷一
Chap.II= Chapter two (or the second chapter)
2
Page 3 = page Three (or the third page)
3
See pp.5-10 = See Pages five to ten
见第5-10
Act V = Act five (or the fifth act)
5
Hamlet III 1:56 = Hamlet Act Three, Secene One.Line fifty-six
《哈姆雷特》第3幕第一场第56
Matt.7:12 = Matthew, Chapter Seven, Verse Twelve
《马可福音》第七章第12
Beethoven Op.49 = Beethoven Opus forty-nine
贝多芬作品第49
4to = quarto
四本开 8vo = octavo 八本开

(3)Other
其他
World War I = World War One
第一次世界大战
World War II = World War Two
第二次世界大战
Charles I= Charles the First
查理一世
Henry V = Henry the Fifth
亨利五世
Mr.- = Mr. Dash; Mr. So-and-so
某某先生
Mr.B - = Mr. B
-Esq.,of -= the town of Blank Esquire of Blank University
某大学某某先生
the town of = the town of Blank
某某城
The result of the game was 3-0
比赛结果是三比零。


7.Money
货币

(1)British currency
英币
6d. = six pence
六便士
1/2d. = a halfpenny
半便士
11/2d. = a peney halfpenny or three halfpeny or three halfpence
一便士半
1/4d. = a farthing
一个铜元
33/4d.= three pence three farghings
三便士三铜元
1s.6d.(or 1/6) = one (shilling) and six (pence)
一先令六便士1.18 = (or1.18s.)= one pound eighteen (shillings) 一镑十八先令1.3s.6d. = one pound, three shillings (and) sixpence
4/51/2(or4s.51/2d.) = four (shillings) and five pence halfpenny

(2)U.S. currency
?1.20 dollar (and) twenty (cents) 美金一元二角?4.25 = four dollars twenty-five cents 美金四元二角五分

(3)Soviet currency
前苏联币
6 Rb. 15 = six roubles fifteen kopecks
六卢布十五戈比

(4) German currency
德币
1 m. 60 = one mark sixty pfennig -
马克六十芬尼

(5)French currency
法国币
1 fr.30 = one franc. thirty (centimes) -
法郎三十生丁
0 fr.15 = fifteen centimes
十五生丁

(6) Chinese People's Currency
人民币?1.50 = one yuan and a half 一元五角
JMP 10.35 = JMP ten yuan thirty-five (fen)
人民币十元三角五分附注:yuan单复数没有变化:?也可作为日本本位币的符号。


8. Weight and Measures
度量衡

(1)length,area, and volume
长度、面积和容积
3 in = three inches
三英寸
15 ft.5 in = fifteen foot five (inches)
十五英尺五英寸
[
附注] 尤其在inches省略时, ft.读作foot;如果inches也念出来,ft可以读作fett.
18'6 5/1"= eighteen foot six and a fifth (inches)
10×8feet= ten by eight feet
十英尺长,八英尺宽
5"×4×31/2 = five inches by four by three and a half
长五英寸,宽四英寸,高三英寸半
[
附注] 以上二例中,乘号×表示面积或容积。

(2)Weight
重量
12 dr. 23 gr.= Twelve drams twenty-three grains
十二打兰二十三喱
10 oz. 4 dr. = Ten ounces four drams
十盎司打兰

(3)Capacity
容量
3 gi. = three gills
三及耳
1 qt. 1 pt = one quart one pint
一夸脱一品脱
[
附注] qt.,pt. 的复数是qts.,pts.,也可以不加s.
20 gal. 5 qt. =Twenty gallons five quarts
二十加仑五夸脱
5 bu. 3 pk. = Five bushels three pecks
五蒲式耳三配克

1/2 = a (or one) half
1/3 = a (or one) third
1/4 = a quarter or one fouth
1/5 = a (or one) fifth
2/3 = two thirds
9/10 = nine tenths
53/4 = five and three quarters
15/64= fifteen over (or by) sixty-four
15% = fifteen per cent
4‰ = four per mill

R’ R prime
R” R double prime, R second prime
R1 R sub one
100° C one hundred degrees Centigrade
+ plus; positive
- minus; negative
´ multiplied by; times
¸ divided by
± plus or minus
= is equal to; equals
º is identically equal to
» is approximately equal to
( ) round brackets; parentheses
[ ] square brackets
{ } braces
a
>>b a is much greater than b
a³ b a is greater than or equal to b
aµ b a varies directly as b
lognX logX to the base n
the cubic root of x
the nth root of x
x2 x square, x squared, the square of x
Xn X to n factors; the nth power of x; x to the power n
x -8 x to the minus eighth power
ï xï the absolute value of x
the mean value of X
the sum of the terms indicated; summation of
D x or d x the increment of x
dx differential x
dy/dx the first derivative of y with respect to x
ò integral
¥ infinity
1/2 a half; one half
2/3 two thirds
5/123 five over a hundred and twenty-three
eight and three over fourths; eight and three quarters
0.01 O point O one; zero point zero one; nought point nought one
6 % 6 percent
3‰ 3 per mille
2 : 3 the ratio of two to three
r=xd r equals x multiplied by d
5´ 2=10 five times two equals ten
x3/8=y2 x raised to the third power divided by eight equals y squared
(a+b-c´ d)/e=f a plus b minus c multiplied by d, all divided by e equals f
y = (Wt-W)/x y equals W sub t minus W over x

符号的英文读法 period 句号
≈ is approximately equal to
约等于号 comma 逗号 is less than 小于号 colon 冒号 is more than 大于号 semicolon 分号 is not less than 不小于号 exclamation 惊叹号 is not more than 不大于号 question mark 问号
≤ is less than or equal to
小于或等于号 hyphen 连字符
≥ is more th

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