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国际单位制词头


国际单位制词头希腊语












百 (词头)




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hecto-)是国际单位制词头,表示因数100,符号为h。英语hecto源自希腊语ἑκατόν(hekaton),意为“一百”。


该词头使用较少,常见的特定应用情况有:



  • 百帕(hPa),气象学,用于 大气压,相当于传统的毫巴。


  • 百升(hl或hL),农业。


  • 百克(hg),农学。


  • 百米(hm),射电天文学。


  • 公顷(百公亩,ha),测量,土地面积单位,等于10 000 m2或是1平方百米(100公亩)















































































































































































国际单位制词头 (SI词头)

中國大陸词头

台灣词头
英语词头
符号
1000m10n
十进制
启用时间[n 1]

尧(尧它)


yotta
Y
10008
1024

1000000000000000000000000
1991

泽(泽它)


zetta
Z
10007
1021

1000000000000000000000
1991

艾(艾可萨)


exa
E
10006
1018

1000000000000000000
1975

拍(拍它)


peta
P
10005
1015

1000000000000000
1975

太(太拉)


tera
T
10004
1012

1000000000000
1960

吉(吉咖)


giga
G
10003
109

1000000000
1960



百萬
mega
M
10002
106

1000000
1960



kilo
k
10001
103

1000
1795



hecto
h
10002/3
102
100
1795



deca
da
10001/3
101
10
1795

10000
100
1




deci
d
1000−1/3
10-1
0.1
1795



centi
c
1000−2/3
10-2
0.01
1795



milli
m
1000-1
10-3
0.001
1795



micro

µ
1000-2
10-6

0.000001
1960

纳(纳诺)


nano
n
1000-3
10-9

0.000000001
1960

皮(皮可)


pico
p
1000-4
10-12

0.000000000001
1960

飞(飞母托)


femto
f
1000-5
10-15

0.000000000000001
1964

阿(阿托)


atto
a
1000-6
10-18

0.000000000000000001
1964

仄(仄普托)


zepto
z
1000-7
10-21

0.000000000000000000001
1991

幺(幺科托)


yocto
y
1000-8
10-24

0.000000000000000000000001
1991

  1. ^ 1795年引进的公制单位包含8个词头。其余的时间以CGPM的决议为准。


参见


  • 国际单位制词头

  • 二进制乘数词头




取自“https://zh.wikipedia.org/w/index.php?title=百_(词头)&oldid=49220019”










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