The corrosion causes of large photoelectric theodolites were analyzed. Anticorrosive coating system of large photoelectric theodolites was determined and evaluated. The anticorrosive countermeasures of whole machine were proposed.%分析了大型光电经纬仪腐蚀的原因,确定及评价了其涂层防护体系,提出了大型光电经纬仪整机防腐的对策及措施.
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