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arithmetical progression

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对数视力表_百度百科 ... 2．8 几何级数 geometrical progression 2．9 算术级数 arithmetical progression 2．14 照度 illuminatio…

英语新词汇与常用词汇的翻译(A) ... arithmetical mean 等差中项 arithmetical progression 等差级数 arithmetical 算术的 ...

ASA ratings have a strict arithmetical progression , 400 ASA being twice AS fASt s 200 ASA in terms of film sensitivity .

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