除了在凝聚体物理学方面的最少理解的问题，金属绝缘子过渡由于电子电子相互作用是庆祝的大多数之一。
The metal-insulator transition due to electron-electron interactions is one of the most celebrated but least understood problems in condensed matter physics.
架空线路用绝缘子和配件。金属配件。镀锌方管(TG)。
Insulators and fittings for overhead lines. Metal fittings. Galvanized square tubes (TG).
架空线路用绝缘子和配件。金属配件。密封臂(BS)。
Insulators and fittings for overhead lines. Metal fittings. Sealing arm (BS).
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