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大气中氨与水质中氨氮的分析方法改进
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作者 潘桂琴 《黑龙江科技信息》 2008年第14期62-62,共1页
在利用《环境水质分析规程》、《环境大气分析规程》)测定大气中氨和水质中氨氮这两个分析项目时,均采用纳氏试剂比色法(国标),使用两套分析设备,占用一定空间,因此,提出了几个关键性的问题和改良措施,从而使分析成本降低,达到节能降耗... 在利用《环境水质分析规程》、《环境大气分析规程》)测定大气中氨和水质中氨氮这两个分析项目时,均采用纳氏试剂比色法(国标),使用两套分析设备,占用一定空间,因此,提出了几个关键性的问题和改良措施,从而使分析成本降低,达到节能降耗的目的。 展开更多
关键词 节能降耗 实验检验 坏境分析
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Media Narratives and the Conceptualization of Tea: A Case Study of Teavana's Oprah Chai Tea
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作者 Shu-Ling Chen Berggreen Giulia Evolvi Nicolene Durham 《Journalism and Mass Communication》 2016年第1期1-11,共11页
More than just a drink, tea embodies social, cultural, economic and political meanings through time and across cultures. There is an essential tie between media and this meaning-making process. Media often create and ... More than just a drink, tea embodies social, cultural, economic and political meanings through time and across cultures. There is an essential tie between media and this meaning-making process. Media often create and carry the visions of health, nature, tranquility, and prosperity offered by tea. This mediated imaginary seems to persist even in the face of vast human inequalities and suffering and irreversible negative environmental impacts through the current practice of tea production under global conglomerates. Through textual analysis of media narratives of Teavana, a well-known tea brand, this project explores how media's mythic narratives potentially naturalize and celebrate the current production practice and the conspicuous consumption of tea, and silence the human suffering and environmental destruction endured, in order to gratify the very practice and consumption promoted by media. 展开更多
关键词 TEA media narratives Teavana OPRAH metabolic rift treadmill of production theory tea laborers
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