黄经

According to its theoretical model of the true geocentric longitude, the astronomical meaning of planetary theory in ancient China is revealed.

根据构建的行星地心平黄经的理论模型，分析了传统历法中对行星的平视运动推算的精度；又利用行星之地心真黄经的理论模型，探讨了中国古代行星算法模型的天文意义。

This paper presents the formula of the initial values of theorbital parameters— celestial longitudeφ_0 of the sun, right ascension ofascending nodeΩ_0 and argument of perigeeω_0, used for calculating orbitalheat flux received by satellite.

文章给出了卫星热分析空间外热流计算中所需要的轨道参数太阳黄经、交点赤经和近地点幅角的初值φ0、_、_的计算公式。

On that day the winter solstice, the sun at 270 degrees longitude, the sun is almost directly Tropic of Capricorn, in the northern hemisphere is the year's shortest day of daylight.

冬至这天，太阳位于黄经270度，阳光几乎直射南回归线，是北半球一年中白昼最短的一天。

The 19th century trailshould pass roughly 0.003 astronomical units inside the earth＇sorbit at λo = 139°499,so around 5h ut on august 12,though it mayadd less than 10 to the zhr at that point.

另外在12日13：00前后（黄经来看流星雨°499），地球将以0.003yi来看单位的距离通过一个19世纪的尘埃带，它流星雨造成zhr的增加，但是小于10。

The analysed results show that among the 106 earthquakes of above magnitude 7.0 in 20th century,there are 71% occurred in the period when angle between Moon′s path and the celestial equator turns small and there are over 62% happened when the lunar longitude of ascending node lies from 350° to 210°.

分析结果表明，本世纪106次7.0级以上大地震71%发生于月亮轨道与赤道交角变小阶段，62%以上发生于月亮升交点黄经位于350°～210°期间。

Synodic month 朔望月 The time taken for the moon to reappear at the same ecliptic longitude of the Sun as seen from Earth, which averages 29.53 days.

月球连续两次到达与太阳相同黄经的时间。一个朔望月平均有 29.53 日。

Taking Mars in the Jiyuan Li (1106) as an example, the result shows that the average error of its mean geocentric longitude in a synodic period is about 4'.

具体算法由两个步骤组成：首先，按照行星与地球绕日匀速运动的假设，来推算行星视运动的地心平黄经；然后，对平黄经进行修正，由此获得所求时刻行星的地心真黄经。

The theoretical nutations of a non-rigid Earth are computed from a convolution of the rigid Earth nutation amplitude with a transfer function accounting for the geophysical parameters influencing the Earth rotation. The value of the Earth dynamical flattening correspounds to a scale in the rigid Earth nutation series.

在刚体地球章动振幅的计算中，地球动力学扁率值起着尺度因子的作用，要改善刚体地球章动振幅的计算，需要修改目前的黄经总岁差值。

Based on this, the characteristics of related celestial body positions at the occurrence time of the triggered earthquakes are studied. The distribution patterns, which have tidal_triggering physical basis, of lunar_solar ecliptic longitude differences and declinations and zenith distances are obtained.

在此基础上，对受到潮汐应力触发的地震发震时的天体位置特征进行了研究，得到了具有潮汐应力触发物理基础的地震时的月日黄经差、月日赤纬和月日天顶距的分布图像。

The circle of space surrounding the earth and measuring 360 degrees of celestial longitude is known as the zodiac.

围拢地球和测量360度黄经的空间圈子叫作黄道带。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。