彗星

ZetaTalk Prediction 2/22/2003: We anticipate NASA will explainthe Planet X complex as any number of things, or rather theirlackeys, who will natter the word on every Internet or media sourcethat allows their nattering - asteroid bunch, passing comet,unusual comet, or whatever.

齐塔人之声&预测&2003年2月22日：我们预期NASA会将行星X的综合体解释为许多东西，或者他们的阿谀奉承者会在每一个允许他们胡扯的网站或媒体渠道上大放厥词，说这些是小流星群，通过的彗星，罕见的彗星之类的东西。

One of the prerequisites for life that has been proposed is for there to be a giant gas planet in the neighbourhood that soaks up most of the comets and asteroids before they can wreak havoc on the smaller, rockier worlds on which life can arise.

已经提出一个生命的先决条件是，在大多数彗星和小行星对更小且多岩石的可出现生命（至少是我们知道的生命形式）的世界造成浩劫之前，其临近某地区要有一个巨大的气体行星吸引大部分的这些彗星和小行星。

The answer has to do with comets. Comets are big, dirty snowballs that orbit our sun.

答案是因为彗星，彗星是个绕着太阳转的很大很脏的雪球。

Methods:Eight parameters of cell nuclear in kidney cellules of 111 rats,including the tail length,the head radius,the percentage of head DNA,the percentage of tail DNA,the tail moment,the olive moment,the head area and the tail area,were determined at different interval within 72 h postmortem by single-cell gel electrophoresisand fluorescent microscope connected with auto-analysis-image system.

单细胞凝胶电泳(single cell gel electrophoresis，SCGE)技术于1984年由OSTLING等首先提出[1]，后又经OLIVE等[2，3]建立和改进，因细胞电泳形状颇似彗星，又称彗星试验。

Yet compared with the periods of some comets, that of the comet of 1882 is quite short.

然而与某些彗星的周期比较起来，一八八二年的彗星的周期是相当短的。

Image data from the Swift detectors, normally intended to follow cosmic gamma-ray bursts, were recorded on January 28. The data are combined here, along with a sky survey image of background stars, to show optical and ultraviolet light in green-blue hues and x-rays from the comet in red.

通常用来追踪珈玛射线爆发事件的雨燕号卫星，在1月28日转向鹿林彗星，而所取得的数据再和巡天摄影的背景星场结合，并用绿-蓝色泽及红色来呈现彗星的可见光、紫外光和X射线辐射。

Comet Lulin's orbit indicates that this is likely the comet's first trip into the inner Solar System.

彗星Lulin的轨道说明了这可能是这颗彗星第一次进入太阳系内部。

C/1998 J1's track along the edge of the C3 field - where distortion is greatest - was problematic.

早期SOHO用在彗星上的天体测量方法还是很&老土&的：用彗星到太阳的方位角和距离来确定坐标。C/1998 J1 的轨迹是沿着C3视场边缘的，因此象差非常大，这就对旧方法造成了大麻烦。

There were remarkable differences (P 0.05) of tailing rate and tail long between Guiyu Group and Control Group.

新生儿脐带血铬水平与拖尾率即彗星细胞数和彗星细胞尾长成正相关。

As Comet Lulin moves into the northern sky in mid February to rise around midnight, it should at least be spotted by comet watchers with binoculars and a good sky chart.

彗星卢琳在2月中旬将移动到北变的天空，午夜中升起，彗星了望者用双目望眼镜和天体图应该就能将它定位。

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。