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正常人在仅转动眼球而不回头的情况下,可以看到前方约200°左右的范围;加上三个后视镜提供的约60°左右的后视范围,剩下约100°的范围就是后视镜盲区。
Normal people only turn the eye without turning back the case, you can see the front of about 200 ° range; plus three mirrors provide about 60 ° rear view range, leaving about 100 ° range is Mirror blind area.