查询词典 quasars

This paper presents a novel method for redshift determination of quasars.

给出了一种新的类星体光谱的红移测量方法。

The new observations also suggest that quasars were more common in the early universe than previously thought.

新的观测还表明，类星体更在早期宇宙中常见的比以前想象。

What did the first quasars look like?

第一类星体什麼样子的？

"If it turned out that all the quasars found at the beginning of the universe were dusty, that would be hard to explain."

如果事实证明所有的被发现的类星体在宇宙的开端都有尘埃，那将是很难解释的。

Moreover, SDSS should find 10 to 20 more quasars at similar distances in the next several years.

另外，未来几年SDSS将在相近的距离内找到10到20个或更多的类星体。

The new observations also suggest that quasars were more common in the early universe than previously thought.

这些新观测还表明，早期宇宙中的类星体更为常见，这一点是始料不及的。

The new observations revealed hidden quasars in every one of the galaxies, the team reports online today in Science.

新的观测显示，隐藏在每一个类星体的星系研究报告称，今天的在线科学。

The black holes in question are at the centres of quasars.

我们所讨论的黑洞位于类星体的中心。

Since the light arriving from the quasars began its journey billions of years ago.

来自类星体的光从数十亿年前就开始了它们的旅程，所以在宇宙诞生初期

Taken together, the data paint a picture of how quasars form.

综合考虑，这些资料描绘了类星体形成的画面。

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。