因此对SF6封闭式组合电器各气室因内部电弧引起的压力、温度场研究，成为研究的重点。
Therefore the pressure and temperature distribution in SF6 GIS become the focus of the research.
主要展品：点火开关，组合开关，玻璃升降开关等汽车电子电器。
Main products: Ignition switch, combination switch, Power window switch and other auto electrical parts.
本文介绍组合继电器的构成原理。
The paper introduce the structure principle of the combination relay.
本文介绍组合继电器的构成原理。
The paper introduce the structure principle of the combination relay.
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