... 个体物量指数 individual quantity index 各组总和 aggregate of classes 给定年度权数 given year weight ...
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And you could aggregate the information of all the classes taught by one teacher, of an entire school or even district, with data covering a whole year.
由于全年都有数据覆盖，对于同一个老师的授课信息，整个学校甚至是整个市区的教育信息你都能了如指掌。
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