查询词典 astronomical

But this presumption is based on no pre-Han astronomical source, or even post-Han source, for that matter.

就这个问题而言，这个假设是基於前无汉前天文学根据，或甚至后无汉后天文学根据的。

The book said:"gossip Yang Yao '-' and Yin Yao '--' 3 overlap in the form of something to 'number of days''days of the system' has the meaning" and cited "days Sanko, Sun Moon Star"( Ban Gu,"Bai Hu Tong · Feng Gong Hou") certificates. This argument is also wrong: the ancient's "days" refers to an astronomical count one and not confined to Sun Moon Star Sanko.

在《易经》和阴阳八卦学理中，&阴阳两仪&指的是天、地或阴阳二性、阴阳二气均不是&线&，&四象&指四时、四方或老阴、老阳、少阴、少阳四种属性，&八卦&指八种基本物质天、地、水、火、雷、风、山、泽，&六十四卦&及其三百八十四爻可以象征和指代万事万物，均处于四维时空中，而并无一维、二维、三维、六维之别。

The ancient Babylonians had developed complex mathematical techniques to record the stars, the Greeks systemised the organisation of knowledge based on logic, Islamic scholars wrote astronomical and medical texts and Chinese inventors recorded recipes for gunpowder.

伊斯兰学者撰写了天文学文献和医学文献；中国发明者记录了火药的配方。

Astronomical yearbooks and calendars for amateur astronomers provide the times of the beginning of the synodic solar rotations as well as the longitudes Lo.

天文年历和日历为业余天文学家提供了太阳会合自转周期的始时和经度Lo。

The conclusion is that the extent of the zenith blind zone was restricted by three parameters: maximum azimuth angular velocity of tracking mount, flight level and airspeed of the target. In astronomical coordinates (reference mark is north latitude 43. 9°), analyzed is the effect of azimuth angular velocity, acceleration and altitude angular velocity, acceleration etc. Some formulae were given to compute all correlative quantities.

在观测坐标系中推导出确定天顶盲区理论范围公式和满足过天顶跟踪条件的关系式；在天文坐标系中以长春卫星观测站（北纬43.9°）作为计算基准，分别讨论了方位、俯仰方向的角速度、角加速度等对天顶盲区的影响，在理论分析上为解决过天顶跟踪问题打下了基础。

The conclusion is that the extent of the zenith blind zone was restricted by three parameters: maximum azimuth angular velocity of tracking mount, flight level and airspeed of the target. In astronomical coordinates (reference mark is north latitude 43.9 ), analyzed is the effect of azimuth angular velocity, acceleration and altitude angular velocity, acceleration etc. Some formulae were given to compute all correlative quantities.

在观测坐标系中推导出确定天顶盲区理论范围公式和满足过天项跟踪条件的关系式；在天文坐标系中以长春卫星观测站(北纬43.9°)作为计算基准，分别讨论了方位、俯仰方向的角速度、角加速度等对天顶盲区的影响，在理论分析上为解决过天顶跟踪问题打下了基础。

The seasons are marked by solstices and equinoxes — astronomical terms that relate to Earth's tilt.

四季由&极至&和&均分&划分。&极至&和&均分&是天文学术语。

The oldest known Feng Shui device consists of a two-sided board with astronomical sightlines.

至今所知的最古老风水设备是由一块双面的木板组成，上面带有天文视线。

Astronomical wage of kindergarten for salariats, they can not when the child was still small to pay for then on such a large expenditure, if the introduction of free early childhood education policy, I think many people are very happy to give an early age the children a good education!

天价幼儿园对于工薪一族来说，他们无法在小孩还小的时候就支付对他们来说如此大的开支，倘若幼儿教育实行免费政策，相信很多人都非常乐意从小就带给小孩们很好的教育！

We performed a simulative test, which confirms that wavelet analysis can separate annual wobble and Chandler wobble. Our results show that this method can be used in astronomical geodynamies effectively. This paper is divided into two parts. The first is about statistic characteristic of polar motion. Polar motion includes secular motion, long period fluctuations, Chandler wobble, annual wobble and high frequency wobble. The secular motion is 3.4mas/year and towards 760W meridian. Long period fluctuations have difference periods in x-axis and y-axis. They are 31.7-year and 24-year in x-axis and 28.5-year and 22.9-year in y-axis. These 2~? decades fluctuations have an amplitude of about 30 mas , and are very nearly linearly polarized, with the observed motion of pole being almost entirely along a line between 360E and 1440W. There is a 55.4-year wobble whose amplitude is 9 mas. The amplitude of the interannual fluctuations is about 4? mas. The amplitude of long period fluctuations decreased after 1970. The annual wobble is a steady wobble. It retrograde wobble is only 1/20 of prograde wobble in amplitude.

本文的工作主要分为两部分：第一部分是通过分析POLE97序列，我们对极移的统计特性有了一个较全面的认识，极移主要包括趋势项、长周期项、Chandler项、周年项和高频项：趋势项的方向是西经76°，速度为每年3.4mas；长周期项中Markowitz 项在X、Y两个方向有不同的周期，它们分别是：X方向的两个周期是31.7年和24 年，Y方向的两个周期为28.5年和22.9年它们叠加在一起是一个线偏振运动，最大振幅约为30mas，偏振方向在西经144°和东经36°之间；极移的长周期波动中还存在一个 55.4年周期的圆周运动，振幅约为9mas；十年尺度变化的振幅在4～6mas之间，在Y 方向十年尺度的成份比较多，它们的周期在X方向和Y方向不是对应的；从七十年代年开始长周期变化的振幅明显降低；周年项是一个振幅稳定的摆动，在X、Y两个方向的振幅略有差别，逆向运动振幅大约为顺向运动振幅的1/20；Chandler摆动的振幅自1900年以来经历了几次较大的变化，其中包括1915年和1955年两次极大值，振幅分别达到0&。25和0&。28，以及1925～1940期间小于0.09的过程，Chandler项在X、Y 两个方向的振幅几乎完全相等，其逆向运动振幅不到顺向运动振幅的1/50。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。