In the second chapter, we analyze the development COD measuring technique and the current instruments, design the new measuring technique of ultraviolet scanning.
第二章分析了当前COD测量技术与仪器的现状与特点，并提出了紫外扫描式多光谱COD测量技术；
In the second chapter, we analyze the development COD measuring technique and the current instruments, design the new measuring technique of ultraviolet scanning.
第二章分析了当前COD测量技术与仪器的现状与特点，并提出了紫外扫描式多光谱COD测量技术；
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