1)precession[英][pri'se??n][美][pr?'s???n]岁差
1.Astronomer He Chengtian is generally regarded in historical astronomy as having proclaimed that precession of the equinoxes“recedes on degree per hundred years”in“The Memorial to the Throne”.按天文学史界通行的观点,天文历算家何承天(370~447)在“上元嘉历表”(443)中提出了赤道岁差“百年退一度”。
2.It shows that obliquity cycle is stronger than precession cycle in the 2.综合分析结果显示:在整个演化过程中,由于北半球夏季太阳辐射与南半球潜热输出相位关系的不同,导致斜率周期一直强于岁差周期;在987-1552 ka阶段,15 ka、10。
3.It is an effective way to explain the year of observation of the four mid-season stars recorded in Yao Dian 《尧典》based on the principal of Precession.利用岁差原理进行推算,是解决《尧典》四仲中星观测年代问题的有效途径。
英文短句/例句
1.He then accounts for the precession of the equinoxes.然后他解释分点岁差。
2.It goes backward, and is therefore called a precession.它有前向后推，因此称做一个岁差。
3.Comparison of IAU1976,1980 and IAU2000A Precession-nutation ModelIAU1976、1980及2000A岁差章动模型的比较
4.At one time, it is proved that the expression of precession is independent of Earth model.同时还证明了岁差表达式与地球模型无关.
5.Jones was Eisenhouwer's contemporary and had been his friend for many years.琼斯与艾森豪威尔年岁差不多，是他多年好友。
6.Deduction from Moment of Precession and Nutation Considering High Step Tidal Generating Potential of Solar and Luner顾及日月高阶引潮力位的岁差章动力矩的推导
7.His age differs by two years from your own.他的年龄与你相差两岁。
8."Twenty - almost twenty-one.“二十岁——差点二十一。
9.Vive la Difference in the Hotel Rooms宾馆房间里的差别万岁
10.IN THIS ARTICLE: Vive la difference, say the French--long live the difference between men and women.本文简介：差别万岁，法国人说－－男女之间的差别万岁。
11.This house would prohibit marriages between people with more than30 years' age difference.应该禁止年龄差距大于30岁的人结婚。
12.It was three months before I was seven years old.那里我还差3个月满7岁。
13.She was shy two months of her nineteenth birthday.她差两个月就是十九岁的生日。
14.Her eyesight grew dim with age.她的视力因年岁的增长而变差了。
15.There was fifteen years or so difference in age between the two women.这两个女性的年令相差大约十五岁。
16.Research on Gender Difference in Executive Function for 4～6 Years Old Children;4～6岁幼儿执行功能性别差异性研究
17.5～9-olds Understanding of Diversity in Individual Thought Processes;5~9岁儿童对心理过程差异的理解
18.THE CURSE OF BELIEF REASONING IN 3-5 YEARS CHILDREN3～5岁儿童信念状态推理中的偏差
相关短句/例句
precession of the equinox岁差;分点岁差
3)precession mode岁差模型
1.The background of submitting precession mode P03 is briefly described.简述了岁差P03模型提出的背景情况;指出IAU1976岁差模型的缺陷,IAU 2000A岁差和章动模型中虽有改进但仍不完善;对IAU2006岁差模型(即Capitaine提出的P03模型)作了介绍,并将其与其他岁差模型L77、B03和F03进行了比较;述及GCRS至ITRS的2种表达方法:基于春分点的岁差和章动旋转角方法和运动参考架CIO的X、Y、s的方法;给出了CIP和CIO位置确定的各种方法以及其精度;最后叙述了20世纪IAU采用的岁差-章动模型和IAU天文常数工作组的有关情况,给出了在惯性参考架中"非旋转原点"的运动。
4)half-precession半岁差
5)precessional cycle岁差周期
1.This has been proved to be consistent with the insolation changes caused by a precessional cycle of 23 ka and a significant global impact appeared between 65 N～60 S.MIS 3b冷期在古里雅冰芯记录表现为 5 4～ 44kaBP比现代温度低 5℃的冷期 ,与MIS 3c (早期 )和MIS 3a (晚期 )温度高出现代 3℃和 4℃情况迥然相反 ,而和以 2 3ka的岁差周期 (precessionalcycle)所导致的日射变化一致 ,在 6 5°N～ 6 0°S间有重大作用 。
6)precession rate岁差速率
延伸阅读
岁差岁差equinoxes，precessionof地球自转轴的进动引起春分点位移的现象。在日、月的引力作用下，地球自转轴的空间指向并不固定，呈现为绕一条通过地心并与黄道面垂直的轴线缓慢而连续地运动，大约25800年顺时针向（从北半球看）旋转一周，描绘出一个圆锥面。此圆锥面的顶角等于黄赤交角23.°5。于是天极在天球上绕黄极描绘出一个半径为23.°5的小圆，也使春分点沿黄道以与太阳周年视运动相反的方向每25800年旋转一周，每年西移约50.″3。这种由太阳和月球引起的地轴的长期进动（或称旋进）称为日月岁差。此外，在行星的引力作用下，地球公转轨道平面不断地改变位置，这不仅使黄赤交角改变，还使春分点沿赤道产生一个微小的位移，其方向与日月岁差相反，这一效应称为行星岁差。行星岁差使春分点沿赤道每年东移约0.″13。日月岁差和行星岁差的综合作用使天体的坐标如赤经、赤纬等发生变化，一年内的变化量称为周年岁差。此外，根据广义相对论，旋转物体的自转轴会在空间产生相对论性进动，称为测地岁差。地球的测地岁差为1.″98／世纪，方向为逆时针向。
