the INTERNET DOMAIN NAME for Guinea 几内亚
By means of weight loss method, effect of descaling agents GN-1 and GN-2 on corrosion of red copper and carbon steel was studied under dynamic and static conditions.
采用静态、动态失重法研究了GN 1和GN 2除垢液对紫铜、碳钢试片的腐蚀，试验了有无缓蚀剂存在等条件下的腐蚀情况。
The zero-valence iron process is a competitive method for treating reactive brilliant orange X-GN wastewater because of its high efficiency and low price.
从以上结果可见，零价铁法处理活性艳橙X-GN染料废水成本低廉，处理效果好，具有很好的应用前景。
Phonak and GN Store Nord both said they will appeal against the decision.
峰力和大北集团他们都表示将对该决定提出上诉。
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