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单词 halfhour
释义

halfhour /'hæf'auə//ˈhæfˈaʊr/

英汉-汉英词典
n.,adj. 半小时(的),三十分钟(的)
词组 | 习惯用语
您要查找的是不是:
  • half-hour adj. (每)三十分钟的
  • Balfour 巴尔弗
  • halfhearted adj. 不认真的 无兴趣的;不热心的
  • halfword n. 半字
halfhour adj. 半小时的;三十分钟的; n. 半小时;三十分钟;

网络短语:
halfhour conversation 半小时的谈话
halfhour storyy 半小时的故事
halfhour rating 半小时额定值
原声例句
《老友记》经典台词

Oh God … Well, it started about a halfhour before the wedding.

雷切尔:天啊… … 好吧,它是在婚礼前小时开始的。

中文百科

小时 Hour

(重定向自Halfhour)

小时拉丁语:hora,常见符号为“h”)是一个时间的计量单位。当前的用法中,1小时等值于60分钟,也等值于3600秒,约是一个平太阳日的二十四分之一。

在协调世界时(UTC)时刻系中,为与世界时相协调,还存在正负闰秒,及一小时的长度可能多一秒或少一秒。

值得注意的是,时间的国际单位制基本单位是秒,而不是小时,小时与国际单位制基本单位相协调的辅助时间单位。

英语百科

Hour 小时

(重定向自Halfhour)
Midnight on a 24-hour digital clock
Midday or midnight on a 12-hour analog clock
The equation of time—above the axis the sundial will appear fast, compared with a clock showing local mean time, and below the sundial will appear slow.
Top view of an equatorial sundial. The hour lines are spaced equally about the circle, and the shadow of the gnomon (a thin cylindrical rod) rotates uniformly. The height of the gnomon is 5⁄12 the outer radius of the dial. This animation depicts the motion of the shadow from 3 a.m. to 9 p.m. on mid-summer's day, when the sun is at its highest declination (roughly 23.5°). Sunrise and sunset occur at 3am and 9pm, respectively, on that day at geographical latitudes near 57.5°, roughly the latitude of Aberdeen or Sitka, Alaska.

The hour (common symbol: h or hr, h being the international form of the symbol) is a unit of measurement of time. In modern usage, an hour comprises 60 minutes, or 3,600 seconds. It is approximately 24 of a mean solar day.

An hour in the Universal Coordinated Time (UTC) time standard can include a negative or positive leap second, and may therefore have a duration of 3,599 or 3,601 seconds for adjustment purposes.

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更新时间:2025/6/21 8:59:31