从优化设计的角度求出了光栅的最佳参数以及干涉仪三束光的最佳光强之比；
The optical parameters of grating and intensity ratio among three beams in interferometer are derived from the view of optimization design.
香洲区12日召开“唐家湾古镇保护与规划汇报会”， 同济大学教授阮仪三在会上为唐家湾古镇的保护与规划建言献策。
At the meeting of planning to preserve Tang Jia Wan Ancient Town convened on April 12, Professor Ruan Yisan from Tongji University made suggestions on how to keep the ancient town from being damaged.
地板上立着三个大地球仪。
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