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圆心角两倍于圆周角
meaning in English
angle at centre twice angle at circumference
Related Words
圆心角
圆周角
圆周角条件
交错弓形的圆周角
同弓形内的圆周角
倍
倍倍尔
圆心渐开线
圆心角
圆心片
圆心症
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