1) vertical direct east and west sun dials
面东西日晷
1.
In this paper,Qi Yanhuai,an astronomer in the Qing dynasty,and his vertical direct east and west sun dials,transit instrument and celestial sphere instrument were studied in detail.
介绍了清代天文学家齐彦槐的生平及其制作的面东西日晷、中星仪和天球仪等天文仪器 ,进一步探讨了这些天文仪器的制作原理和使用方法 。
2) ellipsoidal gnomonic projection
椭球面日晷投影
1.
The three important characteristics and application of the ellipsoidal gnomonic projection are described.
研究了从地球椭球面描写到海图平面的采用双重投影法的日晷投影方程式 ,并阐明了椭球面日晷投影的 3个重要特性及其应
3) Gnomon
[英]['nəumɔn] [美]['nomɑn]
日晷
1.
Bronze Gnomon in Investment Casting in Plaster Mold;
青铜日晷石膏型熔模铸造技术
4) sundial
[英]['sʌndaɪəl] [美]['sʌn'daɪəl]
日晷
1.
The design principles of the sundial are fairly complex.
给出了多种常用日晷晷面线图设计计算式及其相应的线图样式,并阐述了赤道式、地平式、子午式、卯酉式等多种日晷的特色、优缺点及其结构安装要点。
2.
Using sundial in different places can also measure the circunference of earth.
日晷既有测时功能,又有守时功能,这远非钟表能比;日晷的异地巧用,又可测出地球的大小,这一实验入选美国《物理世界》杂志“世界十大经典物理试验”。
3.
Following the frame of "celestial poles" and "twenty-eight Constellations",measuring shadow by setting up a pole and Sundial determine the five positions(West,East,North,South and Middle) of Heaven and Earth.
立竿测影、日晷是追随“天极”、“二十八宿”的框架 ,来测定天地东西南北中这五个方位 ,并据此划分 2 4节气、岁、月、日、时 ,这些内容是对地球全方位直面太阳运动的演示。
5) sundials
日晷
1.
A detailed comparison from both textual and technical angles shows that the Rigui Tufa(the Drawings and Methods of Sundials)by Didace de Pantoja and Sun Yuanhua contains basi- cally the same content as both the first part of Lu Zhongyu s manuscript on sundials and Johann Adam Schall yon Bell s and Zhu Que s book with the same title,which in turn are both arguably written by Pantoja and Sun.
文本和技术两方面的细致比较表明,庞迪我和孙元化的《日晷图法》与陆仲玉日晷著作抄本的第一部分以及汤若望和朱確的同名著作内容基本相同,可以认为它们均出自庞迪我和孙元化的手笔。
2.
In the system the ancient China s timekeepers are classified into the following five classifications: sundials, water clocks, mechanical clocks, wooden clocks, and wheel clocks.
对中国古代计时器给出了一种分类系统,共分为日晷、漏刻、机械计时器、轮漏和木漏5大类。
6) gnomonic projection
日晷投影
补充资料:日晷
日晷 中国古代测时仪器。由晷针和晷盘组成,晷盘上有时间刻度,晷针垂直于盘面,通过晷针日影在盘面上的方向就能测定时间。因盘面安置的方向不同,日晷可分为地平日晷、赤道日晷、立晷、斜晷。日晷的早期历史尚不清楚,最早的可靠记载是《隋书·天文志》中提到的袁充于隋开皇十四年(594)发明的短影平仪(即地平日晷)。赤道日晷的明确记载初见于南宋曾敏行《独醒杂志》卷二中提到的晷影图,但晷盘是木制的。后世改用石质晷盘,金属晷针。北京故宫等处保存的都是清代制造的石质赤道日晷。赤道日晷的晷面平行于赤道面,晷针指向南北极。
|
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条