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Throwaway coffee filter has graduated scales on wall to indicate required level of coffee powder
Throwaway coffee filter has graduated scales on wall to indicate required level of coffee powder
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机译:一次性咖啡过滤器的墙上刻度刻度可指示所需的咖啡粉水平
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摘要
The pocket shaped coffee filter has graduated scales (3A,3B,3C,3D) on its wall (2) which indicates the level of different grades of coffee powder to be reached in the filter in order to obtain a specified number of cups.
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