Example, suppose the selected food item is' Bread White ', press on numeric key '6' and then '0'.
例如，假设选定的食品项目是'白面包'，对数字媒体关键' 6 '，然后' 0 '。
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The paper is a part of "Numeric controlled laser and video frequency distinguish, manufacture timber technology introduced item" which is supported by the fund of national "948" project (2001-27).