产品型号:YF-370B 产品厂商:YAMAMOTO日本山本光学 产品价格:0 折扣价格:0 产品文档: 简单介绍: YAMAMOTO山本光学遮光型防护眼镜YW-75W JIS NSLP 3 详情介绍: YAMAMOTO山本光学遮光型防护眼镜YW-75W JIS NSLP 3 YAMAMOTO山本光学遮光型防护眼镜YW-75W JIS NSLP 3 YAMAMOTO山本光学遮光型防护眼镜YW-75W JIS...
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16.Investigation on the performance of the pump-free double heat source ejector refrigeration system with R1234yf R1234yf双热源无泵式喷射式制冷系统性能研究YU Meihong, ZHAO Hongxia, WANG Xinli, HAN Jitian, LAI Yanhua于梅红;赵红霞;王新立;韩...
PURPOSE: A surface acoustic wave device and a manufacturing method thereof are provided to prevent a metal pattern formed on a rear portion of the package from being damaged. CONSTITUTION: A surface acoustic wave device includes a surface acoustic wave device(20) and a package(2). The surface...