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 .

從天頂交叉口向西順著天赤道測量的一個角距離欧美一级特黄大片色视频；對在一個特定的地點和特定的時間觀測者來說是赤經(jīng)日韩天堂2017。

The basic principle is based on spherical astronomy and elementary geometry of the trajectory mapping method based on the observation of a celestial body zenith distance, then the ship is located in order to sing the next point as the center of this satellite zenith distance of the ship's position as the radius of the circle, observing the same two objects, or objects at different times of the two observations, we can get two ship's position round, then the ship must have been a point of intersection of two ship's position on the circle.

其基本原理是建立在球面天文學和初等幾何中的軌跡作圖法基礎(chǔ)上的，觀測一個天體的天頂距级特大黄片视频影院8e，則航船就位于以星下點為圓心aaa黄色在线视频，此星天頂距為半徑的船位圓上，觀測兩個天體或者不同時間同一天體的兩個觀測值欧美性爱b啪啪，就可以得到兩個船位圓日本人伦影片，則航船一定在兩個船位圓的一個交點上。

The point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected .

天球上影音先锋啪啪av资源网，在觀測者垂直向下的一點国产精品第8页，與天頂完全相對。

A point on the celestial sphere directly below the observer,diametrically opposite the zenith.

天底天球上日韩在线丝袜福利网站大全，在觀測者垂直向下的一點黄色网站入口观看，與天頂完全相對

Astronomy A point on the celestial sphere directly below the observer, diametrically opposite the zenith.

天底：天球上，在觀測者垂直向下的一點a级免费黄色网站大全，與天頂完全相對

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.

從天頂交叉口向西順著天赤道測量的一個角距離永久网站；對在一個特定的地點和特定的時間觀測者來說是赤經(jīng)。機會難得午夜大香焦！足額穩(wěn)定綠色激光筆團購9876se.色！

This point is on the tropic of Capricorn , which is the most southerly latitude（緯度,經(jīng)度是longitude） reached by the sun, here the sun will be at the zenith each year on midsummer day.

讓我們回到上世紀60年代，理查德·奧巴瑞(RichardO'Barry)的名字就海豚的訓練領(lǐng)域來說国产中文，算得上是全世界最有影響力的權(quán)威人士国产一级黄色视频一区二区三区在线观看，他曾經(jīng)以演員和訓獸師的身份活躍在非常受歡迎的電視節(jié)目《海豚的故事》的拍攝現(xiàn)場……如今已經(jīng)過去40多年的時間了，奧巴瑞卻仍然保持著自己對海豚那異于常人的支配能力人人伦av社区，通過馴獸師與海豚之間的合作表演久久99精品久久久久久久清纯，來贏得電視觀眾心滿意足的笑聲。

Modern and practical astronomy was developed in the 18th century, and successively from the theoretical and practical solution to the Sino-satellite instrument measuring time, too Seoul Scott multi-satellite measurements such as latitude, as well as simultaneous determination of longitude and latitude Supreme Court means the emergence of theodolite, contour instrument, the satellite instrument, zenith instrument, photographic zenith tube, sextant and other useful astronomical instruments, the most commonly used is the optical theodolite .20 century, all-round practical field of astronomy 60 years after the emergence of new technologies, such as satellite Dhoop Le observation and satellite laser ranging, not only the accuracy of more than optical observations, but also greatly improved operating speed, and can provide direct point of geocentric coordinates of the ground.

現(xiàn)代實用天文學是18世紀發(fā)展起來的男人插女人的底下的黄色的视频，先后從理論和實踐上解決了中星儀測時免费A毛视频、太爾各特測緯以及多星等高法同時測定經(jīng)度和緯度的方法，出現(xiàn)了經(jīng)緯儀国产一级A片免费视频在线、等高儀国产精品国产一级A片精品免费、中星儀、天頂儀日韩无码毛片基地、照相天頂筒美女污视频在线观看、六分儀等實用天文學儀器，最常用的是光學全能經(jīng)緯儀。20世紀60年代以后實用天文學領(lǐng)域出現(xiàn)了嶄新的技術(shù)欧美色图二区，如人造衛(wèi)星多普勒觀測和人衛(wèi)激光測距黄网站毛片，不但精度超過光學觀測，而且作業(yè)速度大大提高国内自拍偷拍视频网站，并能直接提供地面點的地心坐標毛片福利导航免费。

Zenith is the point of highest achievement, most complete development, or greatest power

Zenith 指最大的成就，最完善的發(fā)展或最強大的力量

Almost any sports aficionado could name the faces and shakers who defined this basketball rivalry at its zenith point.

基本每一個球迷都能說出一些將他們的生涯發(fā)揮到極致亚洲天堂网2020，非常有影響力的球員女人啪啪视频。