ASTM D117产自石油的电绝缘油的抽样,试验方法和规范的的标准导则
日期:2012-02-08 16:14
tralization numbers; Oil circuit breakers; Petroleum oils; Organic matter content; Petroleum oils--specifications; Physical properties/dimensions/characteristics; Sampling electrical inisulating materials; Transformer oils; Visual examination--electrical insulating materials;
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