The paper describes the basic switching impulse test results of phase-to-phase insulation in EHV substations and overhead lines.

本文叙述超高压变电所和架空线路中相间绝缘操作冲击试验的基本结果。

youdao

Officials in charge of three key international treaties said delegates agreed by consensus to a gradual phase out of the flame retardant hexabromocyclododecane, or HBCD, which is used in building insulation, furniture, vehicles and electronics.

NPR: Nations Agree To New Chemical Ban, Export Controls