计时仪器有太阳钟和机械钟两类。太阳钟是以太阳的投影和方位来计时,分别以土圭、圭表、日晷为代表。由于地球轨道偏心率以及地球倾角的影响,真太阳时和平太阳时是不一致的,机械钟应运而生,代表有水钟、香篆钟、沙漏。
81 中文名:计时仪器.防水表 英文名:Horology; water-resistant watches 作 者:* 定 价:致电询价 出版社:国际标准化组织 简 介: 表;钟表工业;不透水性;时间
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76 中文名称: 计时仪器 具有摆轮游丝振荡系统的精密手表 英文名称: Timekeeping instruments; Wrist-chronometers with spring balance oscillator 页数: 8 采用标准: 95-11-1976,IDT
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电子裁判计时仪器 electronic judging and timing equipment
其他计时仪器 Other time-measuring instruments
古代计时仪器 [仪] antique horologes
钟表与计时仪器制造 clock and chronometer instruments
计时仪器与仪器 Chronometric apparatus and instruments
计时仪器和钟表机芯 Chronometric instruments and watch movements
计算器计时仪 computer chronograph
计算器记时仪 computer chronograph
今天,高度精确的计时仪器为大多数电子设备设定了节拍。
Today, highly accurate timekeeping instruments set the beat for most electronic devices.
早在数千年前,古代中国、希腊和其它很多古代文明就发明了各种各样的精确计时仪器。
Various types of instruments to accurately measure the passage of time were invented in ancient China, Greece, and other civilizations thousands of years ago.
秤漏是一种特殊类型的漏刻,在隋唐及北宋前期曾是司天机构的主要计时仪器。
The steelyard clepsydra, a special type of clepsydra, had been the chief timekeeping instrument during the Sui-Tang period and the earlier stage of the Northern Song dynasty.
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