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Vocabulary
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MEANING OF
平面角
píng
miàn
jiǎo
平面角
How to write
Definition
plane angle
Usage
中文释义
〈名〉以二面角的棱上任意一点为端点,在两个面内分别做垂直于棱的射线,这两条射线所成的角叫做二面角的平面角。
Characters
平
píng
面
miàn
角
jiǎo/jué
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