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- 算术级数, 等差级数arithmetical progression
- 算术级数,等差级数arithmetical progression
- 算术级数求和summation of arithmetic progression
- asa是严谨的算术级数，400asa的感光速度比200asa的快两倍。ASA ratings have a strict arithmetical progression, 400 ASA being twice as fast s 200 ASA in terms of film sensitivity.
- 等差级数arithmetical progression
- 算术级数arithmetic progression
- 高阶等差级数arithmetic series of higher order
- 算术级数定理theorem of arithmetic progression
- 1-4-7-10-13是一个等差级数的开始部分。1-4-7-10-13- is the start of an arithmetic progression.
- 级数series
- 寻找石油的等差级数是严格的。The arithmetic searching for oil is stark.
- 宋元时期的高阶等差级数研究Study on higher arithmatic proglession in the period from Song Dynasty to Yuan Dynasty
- 反算术级数contra-arithmetic series
- 这男孩在家庭教师指导下学算术。The boy is tutoring in arithmetic.
- 高阶算术级数arithmetic series of higher order
- 他的算术很差。His arithmetic is poor.
- 我弟弟的算术很差。My brother is poor at arithmetic.
- 算术级数增长率arithmetic increase rate
- 那小男孩已经能做简单的算术题。The little boy can already do simple problems in arithmetic.
- 无穷级数infinite series
