intrinsic luminosity meaning in Chinese

本身光度

The initial evidence for acceleration came from the study of type ia supernova explosions , which in all cases reach a uniform or at least easily calibrated intrinsic luminosity
支持宇宙正在加速膨胀的第一个证据来自对ia型超新星的研究。这种超新星在爆发时，最终都会达致相同或至少容易校准的固有光度。
To take advantage of this simple fact requires finding astronomical objects that have a known intrinsic luminosity ? the amount of radiation per second produced by the object ? and that can be seen across the universe
要想利用这个简单的关系，那就必须寻获一颗可知其绝对光度（物体每秒所放出的辐射量）的天体，而且在距离我们很远时也能看得到。