With the data of 321 pulsars the Galactic distribution and luminosity function of pulsars have been investigated.
利用迄今得到的321个脉冲星的资料，研究了脉冲星的光度函数和在银河系内的分布。
This paper reviews the progress on studies of the cosmic evolution of the luminosity function of optically selected quasars.
本文评述了光学选类星体光度函数演化的研究方面取得的进展。
In this paper, we investigate the relation between the redshift distribution and the luminosity function of extragalactic objects.
在本文中，我们研究河外天体的红移分布和它们的光度函数之间的关系。
A luminosity function is the number of objects of a particular sort as a function of their luminosity or brightness in some wavelength band.
光度函数是作为某一波段的光度或亮度的函数的特定种类的天体数目。
If the plants need strong luminosity, hanging height can be set at 70 cm. In addition, ZNET series have DAISY CHAIN function, can connect several znet grow lights together, but only need a plug.
如果植物需要强大的光度，悬挂高度可以在70厘米此外，ZNET系列有菊花链功能，可连接多个ZNET植物生长灯一起，但只需要一个插头。
If the plants need strong luminosity, hanging height can be set at 70 cm. In addition, ZNET series have DAISY CHAIN function, can connect several znet grow lights together, but only need a plug.
如果植物需要强大的光度，悬挂高度可以在70厘米此外，ZNET系列有菊花链功能，可连接多个ZNET植物生长灯一起，但只需要一个插头。
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