架空线路用绝缘子和器材。金具。双联杆和横杆(TG)。
Insulators and fittings for overhead lines. Metal fittings. Twining and bracing rods (TG).
这种双伞绝缘子的优点是改善绝缘子的耐污秽性能，增加爬电距离。
The double-umbrella insulator has the advantages of improving the pollution-resistance performance of the insulator and increasing the creepage distance.
这种双伞绝缘子的优点是改善绝缘子的耐污秽性能，增加爬电距离。
The double-umbrella insulator has the advantages of improving the pollution-resistance performance of the insulator and increasing the creepage distance.
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