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介绍一种机械式的计价秤,其称量标尺采用对数函数刻度,称量时可省去手动输入单价,在自动称量出物品重量的同时,可由刻度确认出其价值。
A mechanical pricing scale is introduced. The weighing scale adopts a logarithmic function scale. When weighing, the unit price can be dispensed with manually. When the weight of an article is automatically weighed, the value can be confirmed by the scale.