For faster navigation, this Iframe is preloading the Wikiwand page for .

此条目没有列出任何参考或来源。 (2020年5月22日)维基百科所有的内容都应该可供查证。请协助补充可靠来源改善这篇条目。无法查证的内容可能会因为异议提出而被移除。

(micro-)是国际单位制词头,指10-6一百万分之一。它的语源是希腊语 μικρός (mikrós),代表符号是希腊字母 µ (mu)但(mu)通常只用在数学上且并非10-6,例如 µg micogram并非(mu)g 这种念法并不符合标准。在只能用拉丁字母表达的情况下,国际单位制允许用字母u代替,比如um代替µm。在一些特定的场合,比如药房微克经常记作mcg,然而这种记法并不符合标准。

许多国际单位制词头是取自英文词头的音,但微是取自英文词头的义。

国际单位制词头
中国大陆名称 台湾名称 英语名称 符号 1000m 10n 十进制 启用时间[n 1]
昆(昆它) quetta Q 100010 1030 1000000000000000000000000000000 2022
容(容那) ronna R 10009 1027 1000000000000000000000000000 2022
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
百万 mega M 10002 106 1000000 1873
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 1873
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
柔(柔托) ronto r 1000-9 10-27 0.000000000000000000000000001 2022
亏(亏科托) quecto q 1000-10 10-30 0.000000000000000000000000000001 2022
  1. ^ 1795年引进的国际单位制包含6个词头。1873年随厘米-克-秒制引进mega和micro。其余的时间以国际度量衡大会的决议为准。

参见

[编辑]
{{bottomLinkPreText}} {{bottomLinkText}}
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?