The green ring structure near the center of the image is about 77 light-years across.
图片中间的绿色环状结构的跨度大概有77光年。
Then viewed by transmitted light, the center of the pattern is bright.
因而传播的光被观察时，中心的图案是亮的。
I first go straight to the memorial light torch in the center of square.
我首先直奔广场中心的纪念光火炬。
The light center of gravity method is applied to processing optic fiber exited spot signal.
采用“光重心法”对光斑信号进行处理。
The light center of gravity method is applied to processing optic fiber exited spot signal.
采用“光重心法”对光斑信号进行处理。
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