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等差级数
等差級數
děngchājíshù
1. arithmetic series (such as 2+4+6+8+...)

Character Breakdown

等
děng
rank, grade; same, equal; to wait
HSK 2 12 丶
差
chà
difference, gap; almost, nearly; in error; an officer
HSK 3 9 丶
级
jí
level, rank; class, grade
HSK 3 6 丶
数
shù
count, number, several
HSK 3 13 丶

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Chinese