The analysis of the corrosion form and environment confirms that the main cause of the corrosion is the poor welding quality and water permeation.
通过对腐蚀形貌和环境进行分析，确认罐顶焊接质量差和雨水渗入是造成腐蚀的主要原因。
Methods Introducing the Fuzzy information diffusion method to evaluate the water environment quality of Xi′an city, and using correspondence analysis to analyze the main pollution cause of sections.
方法首先采用一维模糊信息分配方法对水环境质量进行评价，其次应用对应分析法对各断面的污染成因进行分析。
The investigation and analysis of the water environment quality at the trash ports of Jiujiang reach of Changjiang River was made.
对长江九江段入江排污口环境质量进行了调查与分析，并提出了相应的对策。
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