极光

In this dissertation, EISCAT radar observations and computer numerical simulation methods are involved to study the climatologic characteristics of polar ionosphere and their mechanisms, as well as the polar ionospheric responses to magnetospheric particle precipitation and convection electric field. Then, with the help of the numerical computation, the EISCAT data are employed to invert the energy spectra of auroral precipitating particles and their responses to magnetic storms and substorms.

本文联合利用EISCAT雷达数据和计算机数值模拟手段，以雷达探测数据为基础，数据分析和数值模拟、理论研究相结合，研究了极区电离层气候学特征与机制，磁层粒子沉降和对流电场对极区电离层的影响，并利用雷达数据反演极光沉降粒子能谱特征及其对磁暴和亚暴的响应。

With EISCAT radar observations during 1988～1999, the climatologic features of electron densities in the auroral ionospheric Fregion have been investigated statistically and compared with the IRI2001 model for different seasons at different phases of the solar cycle.

利用1988～1999年欧洲非相干散射EISCAT雷达观测数据，对不同太阳活动周相、不同季节的极光椭圆区电离层F区电子密度进行统计分析，研究其气候学特征，并与IRI2001模式比较。

In parallel manner, the aurora or sun in earth's core rotates counter clockwise, one rotation every 11 minutes.

以类似方式，极光或说地球核心的太阳逆时针旋转，每11分钟一圈。

The so-called northern and southern lights glow and shimmer colorfully in what 19th century Scottish poet W.E.

所谓的南北极光的炽热和五光十色的闪烁在19世纪苏格兰诗人W.E。

It is the general commercial agency of the Danish electrodes with the trademark of Blue Sensor in the mainland China.

北京蓝点极光科贸有限公司，是一家以经营医用耗材而发展的公司，是丹麦蓝点电极在中国大陆的总代理。

Whether you are young, or young at heart, you will love the soft and cuddly feel of Aurora's wonderful products.

不管你是年轻人，或年轻的心，你会爱上柔软，可爱的感觉极光的奇妙产品。

In addition, the ring current is driven earthward (which energizes its particles further), temporarily modifying the field around the Earth and thus shifting the aurora closer to the equator.

此外环电流被逼近地球，进一步加强了其粒子能量，暂时地改变地球附近的磁场，使得极光向赤道靠近。

Patterns in Nature: Northern Lights An emerald green aurora borealis veils the sky over the North Pole.

意译：北极光在自然界的模式。翡翠色的绿色北极光从极光面纱越过北极上空。

The spectacle of the aurora may appear to dazzle and enchant the observer's eye.

极光的壮丽景色的出现，会使观察者为之眩目和迷惑。

The first set of data collected by the energetic particle detectors on board of the ZY-1, a China Brasilia coordinated earth resource satellite,were introduced briefly in this paper.ZY-1 is a polar orbiting satellite at an altitude of 780?

对搭载于我国第一颗地球资源卫星上的"星内高能粒子探测器"首批资料进行初步分析表明，在卫星780km轨道高度上所纪录到的所有高能粒子通量事件都只出现在3个地理区域，即两半球的高纬极光带和南大西洋地磁异常区。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。