该产品双绝缘。大开关设计。

The product is double insulated. Big Switch.

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介绍了一种新型光电器件，即双绝缘层MIMIS隧道发光器件的结构和制备。

The structure and fabrication of double-insulation layer tunnel junction(MIMIS) are introduced.

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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).

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