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:658 ℃时间:2019-10-03 21:15:52
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