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包装容器
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packaging container
包装容器
广义上指为了保护商品在流通过程中的安全,按一定技术规范而使用的包装物、材料及其他辅助物的总体名称。狭义上指使用金属、玻璃、陶瓷、塑料、木质、纸浆等材料,以模具成型为主要方式批量生产,用以盛装、保存内装物的包装类型。
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frequency converter
frequency counter
frequency criterion
frequency curve
frequency cutoff
frequency dependence selection
frequency-dependent conductivity
frequency deviation
frequency diagram
frequency dictionary
frequency difference splitting technique
frequency discriminator
frequency dispersion
frequency distribution
frequency distribution curve
frequency distribution table
frequency diversity and combining
frequency divider
frequency dividing network
frequency division duplex-long term evolution, FDD-LTE
frequency division multiple access
frequency division multiple access, FDMA
frequency division multiplex communication
frequency division multiplexing
frequency division multiplexing, FDM
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