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ha    音标拼音: [h'ɑ] ['etʃ'e]
int. 嘿!,哈!,哈哈!

HA
n 1: (astronomy) the angular distance of a celestial point
measured westward along the celestial equator from the
zenith crossing; the right ascension for an observer at a
particular location and time of day [synonym: {hour angle},
{HA}]

Ha \Ha\ (h[aum]), interj. [AS.]
An exclamation denoting surprise, joy, or grief. Both as
uttered and as written, it expresses a great variety of
emotions, determined by the tone or the context. When
repeated, ha, ha, it is an expression of laughter,
satisfaction, or triumph, sometimes of derisive laughter; or
sometimes it is equivalent to "Well, it is so."
[1913 Webster]

Ha-has, and inarticulate hootings of satirical rebuke.
--Carlyle.
[1913 Webster]



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  • 公顷 - 百度百科
    公顷(英文:Hectare)是面积的公制单位(国际单位),为国际单位制并用单位之一。 1公顷等于边长为100米的正方形的面积,即10000平方米。 国际上,公顷的缩写为ha;在中国大陆的法定缩写为hm2。 公顷主要用于土地面积的测量。
  • 公顷 - 维基百科,自由的百科全书
    國際上,縮寫為ha;在中国大陆的法定缩写为hm²。 此外,公頃也稱為(HA)。 [1] 1公顷 = 10 000 平方米 = 100米×100米 1公顷 = 100 公亩 (ares,公頃的英文字頭hect- 就是「一百」之意) 1公顷 = 15 亩 1公顷 = 2 471 053 8 英亩 (acres) 1公顷 = 0 01 平方公里 1公顷 = 16 276 營造畝
  • HA架构的组成和原理 - CSDN博客
    一、HA架构(High Availability,高可用性架构)是什么? HA架构 是一种系统设计模式,旨在确保服务即使在部分组件发生故障时也能持续运行,从而避免因单点故障导致的服务中断。
  • 1公顷等于多少平方米? - 1公顷 (ha)换算平方米 (m²)
    1公顷等于多少平方米? 公顷 (单位符号是:ha)和 平方米 (或称“平方米”,单位符号是:m²)是面积单位,它们之间的换算关系是:1公顷等于10000平方米。 因此,1公顷换算成平方米的答案是1公顷等于10000平方米。 了解更多: 1平方米等于多少公顷?
  • HA Definition Meaning - Merriam-Webster
    The meaning of HA is —used especially to express surprise, joy, or triumph How to use ha in a sentence
  • HA | English meaning - Cambridge Dictionary
    (Definition of ha from the Cambridge Academic Content Dictionary © Cambridge University Press)
  • Ha - Wikipedia
    Units of measure Hartree, an atomic unit of energy Hectare (ha), a unit of area Hectoampere, a unit of electric current
  • ha - Wiktionary, the free dictionary
    A single ha! (virtually always with an exclamation mark) may be used to express mild amusement or merely a polite reaction to something intended to be funny In modern and informal usage, reduplication tends to be without spaces See haha for more information on those forms
  • Hectare - Math. net
    Hectare A hectare (ha) is a metric measurement of area equal to 10,000 square meters or 2 47105 acres What is a hectare A hectare is a measurement of area in the metric system of measurement The name "hectare" is derived from the metric unit of area, "are," (1 are = 100 m 2) and the metric prefix "hecto-" which denotes a factor of 100





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