Red shift of pl spectra peak was observed , and pl lifetime would rise at the same time 发现加入ingaas及alas缓冲层后使inas量子点发光峰强度增大，谱峰红移，发光寿命增大。
From the enormous redshifts of their spectra , astronomers deduced that they are receding at very fast velocity from us 这些天体的极大红移量，显示它们正以极高速离我们而去。
A redshift can be measured when light from a galaxy is broken up and spread out into a band of colors called a spectrum 当从星系发出的光被分解展开成光谱的时候就可以测出红移了。
As a midterm report , my colleagues and i recently completed an analysis of the first 200 , 000 galaxies with redshifts 我与同事最近刚完成20万个星系红移的分析，做为计画的期中报告。
The redshift is an apparent lengthening of electromagnetic waves emitted by an object moving away from the observer 一个正在远离观察者的物体所发出的电磁波长度变长的现象就是红移。
What is specific to black holes , however , is that the redshift becomes infinite as the travelers approach the horizon 不过黑洞特殊的地方在于，随著旅人向视界趋近，红移会变成无限大。
The standard way to perform this task is to obtain a spectrum of each galaxy in the image and measure its redshift 这项工作的标准做法，是取得影像中每个星系的光谱并且测量它们的红移。
The redshift is due to doppler s effect . thus , a galaxy having positive z means that it is receding from us 红移是由多普勒效应造成的，所以星系红移越大，表示它正以更高的速度远离我们。
The project is now approaching the halfway point in its goal of measuring one million galaxy and quasar redshifts 这个计画的目标是量取100万个星系与类星体的红移，现在已将达成目标的一半。
The redshift caused by the expansion is often confused with the more familiar redshift generated by the doppler effect 膨胀所造成的红移，常会和我们比较熟悉的都卜勒效应所产生的红移搞混。
