Methods With the referential historic data and the basic idea to adopt the mobile percentile method, the statistic conceptual model was established.
方法采用历史参比资料，运用移动百分位数法的基本思路，建立统计方法概念模型。
The system has functions of automatic weighing with sensors, selectable items, automatic printing bills, historic data storage and statistic, which avoids grey loss in original manual operation.
该系统采用传感器自动测重、项目选择、自动打印单据、历史存储与统计等方式，避免了原手动操作中的灰色损失。
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