简要叙述商品条码印刷资格认定工作的重要性,并就贯彻《商品条码印刷资格认定工作实施办法》和提高商品条码的印刷质量提出建议。 张鹏 - 《质量指南》 被引量: 1发表: 2001年 商品条码印刷资格认定工作 一,我国商品条码工作简介 商品条码顾名思义是指用于商品的条码.确切地讲,它是由一组规则排列的条,空及其对应字符...
In this study, the thermal and hydraulic characteristics of the two-phase cooling system are investigated experimentally using R-245fa as a working fluid. The heat transfer and pressure drop characteristics of flow boiling in the cold plate were measured by varying the charge amount of the ...