- 更多网络例句与天体测定相关的网络例句 [注：此内容来源于网络，仅供参考]
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Early in the Spring and Autumn Period of China's invention of the determination of celestial bodies on the celestial globe.
我国早在春秋战国时期就发明了测定天体的浑天仪。
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Determinations based on celestial mechanics provide the constraints on the variation of G of/Go ≤ 10E-12/year.
基于天体力学的测定证明了 G 值变化的约束为/Go ≤ 10E-12/年。
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Another group of students is recording movements of celestial objects using the telescope on Mallorca. They chose to study asteroid photometry.
另一群学生，正在用马罗卡的望远镜，纪录天体的运行，他们选择研究行星的光度测定。
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The nautical techniques of Zheng He's fleet and Columbus' fleet, including their taking a ship's bearings, celestial navigation, meteorology and knowing wind, manipulating sail and using wind, compass and it's rose, nautical chart and map, log and measuring speed, sounding channel and so on, had reached the highest level in the sail time.
郑和船队和哥伦布船队的航海术，包括测定船位术、天体导航术、气象识风术、操帆驶风术、罗盘罗经术、海图地图术、计程测速术、航道探察术等等，都达到了帆船时代迄当时为止最高的水平。由于哥伦布的远航比郑和远航晚了八十多年，故哥伦布的航海术较之郑和又前进了一步。
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Based on this model, the age of the universe, and the Hubble constant value can be accurately determined by the Velocity of light,and the mode indicates the reasons of Hubble constant becoming smaller with farther observation of celestial body and changing trends of Gravitational constant.
依据此模型，可以通过光速值准确测定宇宙的年龄、哈勃常数值，揭示哈勃常数随所测天体距离越远越小的原因和引力常数变化的趋势。
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Error causes are analyzed,and it is recommended that the 2′ could be used as the accuracy standard for civil user at present,when measuring zenith distance based on the direction of gravitational force line.
分析了误差产生的原因，建议以重力线作基准直接测定天体顶距时，近期民用设备可用2′作为标准，理论分析和实验表明，这样可降低仪器造价和对测者的要求，天文定位仍可获得满意的结果。
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Receiving, the radio waves from celestial observation equipment, which can be used to determine the strength of celestial radio, radio source location, size, the polarization of the radio emission and spectrum, etc..
接收、观测来自天体的射电波的设备，它可用来测定天体射电的强度，射电源的位置、大小，射电辐射的偏振和频谱等等。
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The armillary sphere was used to measure the location of celestial bodies.
浑仪是中国古代测定天体位置的仪器，发明于战国时期（公元前475-前221年），唐宋时期趋于完善。
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The armillary sphere was an instrument used to measure the location of celestial bodies in ancient China. It was first invented in the Warring States Period4
浑仪模型 Model of Armillary Sphere 浑仪是中国古代测定天体位置的仪器，发明于战国时期（公元前475--公元前221年），唐宋时期趋于完善。
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Zenith telescopes, spectrographic instruments and attachments, micrometers, photometers, comparators, coelostats of at least up to 65 cm diameter, and sundials of up to at least 90cm diameter rounded out the product line.
还有大到65 cm物镜直径的天顶仪、摄谱仪及配件、测微计、光度测定器、测远仪、定天镜(注：观测或拍摄天体时镜面与地轴一同转动可使图像固定不动)，大到90 cm物镜直径的日昝仪都出现在蔡司的生产线上。
- 更多网络解释与天体测定相关的网络解释 [注：此内容来源于网络，仅供参考]
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astrometry：天体测定
astrology 占星学 | astrometry 天体测定 | astromicin 阿司米星
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azimuth of heavenly body：天体方位
azimuth observation 方位角测定 | azimuth of heavenly body 天体方位 | azimuth only 按天体方位控制
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radioautography：放射自显影法
radioastrophysics 射电天体物理学 | radioautography 放射自显影法 | radiocarbon 14 dating method 放射性碳14 测定年龄法
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astrographic objective：天体照相物镜
astrograph 天体照相仪 | astrographic objective 天体照相物镜 | astrometer 天体光度测定仪
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astrometer：天体光度测定仪
astrographic objective 天体照相物镜 | astrometer 天体光度测定仪 | Astrometry 天象学