引力透镜

For fiatΛCDM cosmogonies withσ8 normalized by recent weak gravitational lens-ing observations, the best results are obtained forΩ0～0.3;Ω0≤0.2 leads to too large galaxy correlation lengths, whileΩ0≥0.4 gives too high mass-to-light ratios to match the observed TF relation.

对于平直ACDM宇宙学模型，根据最近的弱引力透镜给出的σ8值，条件光度函数模型给出了最佳值为Ω0～0.3；当Ω0≤0.2时，星系相关长度过大；而Ω0≥0.4则给出了太高的质光比，和观测的TF关系不符合。

The general effect is known as gravitational lensing, and this specific case is known as the Einstein Cross.

这种效应统称为引力透镜，而图上这种特殊的例子称为爱因斯坦十字。

This effect is known as gravitational lensing, and the heavy object that causes it as a gravitational lens.

这种效应就是引力透镜。大质量物体都能够形成这样的效应。

Because the gas cloud is more massive, the lensing it creates should be more pronounced.

由于气云较为庞大，所产生的引力透镜现象也就应该更为明显。

Another hallmark of dark matter is gravitational lensing, similar to the effect of light passing through a piece of polished glass.

暗物质的另一个特征是引力透镜现象，类似光线通过磨光玻璃时所产生的效果。

Hubble was used to map the dark matter using a technique known as gravitational lensing.

哈勃望远镜是用来绘制暗物质使用的技术，称为引力透镜。

Dr Clowe and his colleagues used a technique called gravitational lensing to detect the mass distribution of the bullet cluster.

克洛博士和他的同事使用一种叫做引力透镜的技术来探测子弹状星云团内物质的分布情况。

Dr Clowe and his colleagues used a technique called gravitational lensing to detect the mass distribution of the bullet cluster.

克洛韦博士及其同事们使用一种称为引力透镜（注1）的技术来探测子弹状星系团的质量分布情况。

Ellis explains, Gravitational lensing is the magnification of distant sources by foreground structures.

Ellis 解释说：引力透镜效应是通过前景结构对遥远光源的放大的结果。

Further studies of this cluster are needed to explain the lack of agreement ,between mass estimates based on the X-ray data and on the gravitational lensing.

以后对于这个星系群的研究需要被用来解释关于基于用X射线数据和引力透镜估算质量的不协调问题。

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。