The size, angle spread and the brightness of the center of the synchrotron radiation light sources are very important to the users.
同步辐射光源的尺寸、散角和中心亮度是装置的重要参数。
Half way up the Brightness Hill, Reed Flute Cave is seven kilometers northwest of the center of Guilin.
半路上的亮度，芦笛岩是西北七公里的桂林的中心。
A method to center an image by brightness gradient is proposed based on the features of the non-diffracting laser circular image.
为有效识别光斑中心，针对无衍射激光斑光图像特点，提出了一种由亮度梯度确定图像中心的方法。
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