暗物质

Now, a new Fermilab experiment called DAMIC is searching for light dark matter candidates with masses less than that of a proton [1 GeV/c 2 ] or two.

现在，一个新的费米实验室的实验要求DAMIC正在寻找暗物质光线候选人群众小于质子[ 1电子伏特/炭2 ]或两个。

The dark matter only interacts gravitationally and so it stays at the center of the sound wave, the origin of the overdensity.

暗物质仅通过引力进行相互作用，所以其呆在声波的中心，也即声波起源的高密度区域。

The whole thing looks like a ring to us on Earth because we're seeing the collision head-on, rather than from the side.

对于地球上的我们，整个暗物质看起来象一个巨环，因为这次碰撞是我们从前面，而不是从侧面观察到的。

Hendrik Hoekstra, also of University of Victoria."This would be the first time we've seen such a thing and could be a huge test of our knowledge of how dark matter behaves."

Hendrik Hoekstra说，他也是维多利亚大学的博士，"我们都一次见到这样的事，它对我们对暗物质的行为的认知是一个巨大的考验"

Hendrik Hoekstra, also ofUniversity of Victoria."This would be the first time we've seen such athing and could be a huge test of our knowledge of how dark matterbehaves."

Hendrik Hoekstra说，他也是维多利亚大学的博士，"我们都一次见到这样的事，它对我们对暗物质的行为的认知是一个巨大的考验"

The time signature of dark matter reionisation will be different from that brought about by stars, says Hooper.

签字的时候，暗物质reionisation将不同于所带来星说，胡珀

So, imaginatively, it was called dark matter.

因此 凭着想象它被称为暗物质

We also show that an errroneous assumption about the geometry of the universe and different infall models only slightly change the results.

上面探讨的星系成团性和速度分布特征是与星系自身的物理性质紧密联系的，而这二者在很大程度上都依赖于星系的摇篮-暗物质晕。

Although cold dark matter has its own problems in explaining cosmic structures [see "The Life Cycle of Galaxies" by Guinevere Kauffmann and Frank van den Bosch; Scientific American, June 2002], most cosmologists consider these problems minor compared with the difficulties faced by alternative hypotheses.

虽然冷暗物质在解释宇宙结构上也有它自身的问题（见《科学人》2002年8月号〈星系传奇〉），但大多数宇宙学家认为，较诸其他假说所面对的困难，这些问题可说是次要的。

Using one of the world's largest optical telescopes, the Keck I in Hawaii, researchers looked for unknown galaxies at the locations of 14 Swift-discovered dark bursts.

放在夏威夷的凯克1号是世界上最大的光学望远镜之一，研究者们通过它在Swift卫星14次发现暗物质爆发的地点找到了未知的光线。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。