The ray's dorsal side, invisible in this image, is covered with a signature pattern of vivid spots.
由于角度的问题，斑点鹰魟那覆盖着标志性斑点图案的背部没办法看得到。
Compared with other common names, the names of scenic spots and historical sites are of great potential commercial value and are precious invisible property;
名胜古迹名称与普通名称相比具有很大商业价值，是宝贵的无形财产；
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