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各种符号的英文读法
各种符号的英文读法
'exclam'
=
'!'
'at'
=
'@'
'numbersign'
=
'#'
'dollar'
=
'$$'
'percent'
=
'%'
'caret'
=
'^'
'ampersand'
=
'&'
'asterisk'
=
'*'
'parenleft'
=
'('
'parenright'
=
')'
'minus'
=
'-'
'underscore'
=
'_'
'equal'
=
'='
'plus'
=
'+'
'bracketleft'
=
'['
'braceleft'
=
'{'
'bracketright'
=<
/p>
']'
'braceright'
=
'}'
'semicolon'
=
';'
'colon'
=
':'
'quote'
=
'''
'doublequote'
=
p>
'
'backquote'
=
'''
'tilde'
=
'~'
'backslash'
=
''
'bar'
=
'|'
'comma'
=
','
'less'
=
'<'
'period'
=
'.'
'greater'
=
'>'
'slash'
=
'/'
'question'
=
'?'
'space'
=
' '
 ̄
hyphen
连字符
' apostrophe
省略号;所有格符号
—
dash
破折号
‘
’
single quotation marks
单引号
“
”
double quotation marks
双引号
(
) parentheses
圆括号
[ ] square brackets
方括号
Angle bracket
{}
Brace
《
》
French quotes
法文引号;书名号
... ellipsis
省略号
¨
tandem colon
双点号
同上
‖
parallel
双线号
/
virgule
斜线号
&
ampersand = and
~
swung dash
代字号
§
section;
division
分节号
→
arrow
箭号;参见号
+
plus
加号;正号
-
minus
减号;负号
?
plus or minus
正负号
×
is multiplied
by
乘号
÷
is divided by
除号
=
is equal to
等于号
≠
is not equal to
不等于号
≡
is equivalent
to
全等于号
≌
is
equal
to
or
approximately
equal
to
等于或
约等于号
≈
is
approximately equal to
约等于号
<
is
less than
小于号
>
is more than
大于号
≤
is not less
than
不小于号
≥
is not more
than
不大于号
?
is less than or
equal to
小于或等于号
?
is more than or
equal to
大于或等于号
%
per cent
百分之?
?
per mill
千分之?
∞
infinity
无限大号
∝
varies as
与?成比例
√
(square) root
平方根
∵
since; because
因为
∴
hence
所以
∷
equals, as
(proportion)
等于,成比例
∟
angle
角
?
semicircle
半圆
≦
circle
圆
○
circumference
圆周
π
pi
圆周率
△
triangle
三角形
≧
perpendicular
to
垂直于
∪
union of
并,合集
∩
intersection of
交,通集
∫
the integral of
?的积分
∑
(sigma)
summation of
总和
?
degree
度
?
minute
分
?
second
秒
#
number
?号
℃
Celsius system
摄氏度
@
at
单价
x'
是
x
prime(
比如转置矩阵
)
x
是
x double-prime
A
上面一个横杠:
A bar
A
p>
上面一个星星
*
:
A asterisk
A
上面一个波浪线~:
A tilde
A
p>
的厄米共轭
(注意不是加号,
那个竖比横<
/p>
长)
:
A dagger
(
dagger
:短剑,匕首)
偏微分符号(不好意思,打不出来)
有人
把它读
partial
或者
d
但这样读都不正规,最正规读法为
round
因为这
个符号是法国人发明的,一开始就
叫
round
倒三角
符号(不好意思,打不出来
2
)
p>
读
作
nabla
或
者
del
读
nabla
的居多,
后者在某些英文书里会见
到。
nab
la
符号本身具有不同的功能,当它按不
同的乘法规则作用于函
数时会分别得到
梯度:
grandient
符号为
grad
散度:
divergence
符号为
div
此时可直接读作
< br>grandient
(
divergence
)
of ...
二、一些函数关系的读法
A
与
p>
B
的乘积
the
___ product of A and B
(
___
中
填乘积的性质,
例如外积就填
outer
,
内积就填
inner)
A
乘以
B A times B or
A is multiplied by B
A/B A over B B
分之
A
的最普通读法
f(x) f of x
函数
f(x)
exp(n) e to
powers of n
e
的
n
次幂
三、
Pronunciation of Numerals
数词的读法
als
and Ordinals
基数和序数
(1)100
以内的数词
基数
序数
XVI 16 sixteen
16th the sixteenth
XVII 17 seventeen 17th the seventeenth
XVIII 18
eighteen 18th the eighteenth
XIX 19 nineteen 19th the
nineteenth
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
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
p>
(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
ons
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
ls
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
atic 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
余
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.
时间
(1)Hours
钟点
2h.5
’
8
=
two
hours
five
minutes
eight
seconds 2
小时
5
分
8
秒
6.18 = six eighteen
6
时
18
分
8.30 a.m.= eight thirty
a.m.[
’
ei
’
em]
上午
8
时
30
分
the
6.05
=
the
six
(nought)
five
p.m
.[
’
pi:
’
em] train
下午
6
时零<
/p>
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
时
0910 = 0 nine ten (
上午
)9
时
10
分
1300 = thirteen hundred 13<
/p>
时
(
下午
1
p>
时
)
1525 = fifteen
twenty-five 15
时
25
分
(
下午
3
时
25
分
)
2000 = twenty hundred 20
时
(
下午
8
时
)
at 5
o
’
c =at five
o
’
clock
五点钟
(2)Date
日期
Oct.1 =October
first
10
月
1
日
Oct.1st = October the first
10
月
1
日
Ist Oct. 1949 = teh first of October,
nineteen
forty-nine 1949
年
10
月
1
日
3/5
=
[
英
]May
(the)
third
5
月
3
日;
[
美
]March fifth
3
月
5
日
p>
[
附注
]
联系日期
前置词用
on.
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