是希腊字母
横杠θ ,读音是西塔
竖杠Φ ,读音是fai
数学符号：一个0,里面一个杠……………………是什么啊
数学符号：一个0,里面一个杠……………………是什么啊
其他人气：135 ℃时间：2019-10-03 21:15:52
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