查询词典 luminosity

Some celestial bodies similar to galactic nebula s but without any luminosity sometimes reveal their presence as dark patches obscuring the light of stars beyond them.

某些与银河星云相似但不发光的天体，有时看来象块黑色补丁，遮住了周围的星光。

The brightest stars in the cluster have a luminosity equal to 300,000 stars like our own Sun.

在那个星团中，最亮的恒星是我们太阳亮度的300，000倍。

The new technique reduced the distance ladder to three "rungs":(1) The distance to galaxy NGC4258 is measured using straightforward geometry and Kepler's laws;(2)Cepheids in six more distant galaxies are used to calibrate the luminosity of Type Ia supernovae;(3) The Hubble constant is measured by observing a brighter milepost marker, Type Ia supernovae, in more distant galaxies hundreds of millions of light-years away, embedded in the expanding universe.

这种新技巧简化了距离跳跃为三个"阶梯"：1、星系NGC 4258的距离采用开普勒定律和简单直接的几何方法精确测量；2、在6个更远的星系中的造父变星用来校准Ia超新星的光度；3、深嵌于数亿光年外的膨胀宇宙中的星系中的Ia超新星——一种遥远而明亮的量天尺，被用于精确测定哈勃常数。

Furthermore, a strong linear correlation exists between radio-luminosity and γ-ray lurninosity〓 The possible upper limit relation suggests that the contribution to γ-ray background of AGNs may be less than other authors' prediction.

另外，光度——光度之间存在显著的线性相关〓可能的上限关系表明AGNs对γ-ray背景的整体贡献比以前认为的要少。

As you can see, I've picked up an area with almost no changes in colors and luminosity.

正如你所看到的，我已经选择了一个领域，几乎没有任何变化，颜色和亮度。

There is only one step from luminosity to the dark, so does its border exist in your heart.

从光明走向黑暗只有一步之遥，那么它的临界点是否就在你的心里。

Have little light decay, and luminosity can be maintained at 80%~90% after 3000 hours.

光衰小，3000小时后仍可维持在80%~90%。

For this example I chose the Luminosity mode.

下面是一个例子，我选择了亮度模式。

How did they account for the luminosity of the moon?

他们是怎么解释月球发光现象的？

There's no way he could ever have John's amazing luminosity.

让他拥有约翰那种令人惊异的发光度显然是不可能的。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？