嵌镶光电阴极由涂有绝缘材料的金属板组成。
The Mosaic consists of a metal plate covered with insulating material.
电器图的供电由一个绝缘的合金的金属板提供。
The circuit draws power via an insulated, shiny metal plate.
测量每相导体与金属屏蔽、金属套间的绝缘电阻。
Measure each phase conductor to metal mask and to metal sleeve insulation resistance.
测量每相金属屏蔽、金属套与大地之间的绝缘电阻。
Measure each phase metal mask, metal sleeve to ground insulation resistance.
绝大多数金属都是电的良导体，而纸张、空气、玻璃则是良好的绝缘体。
Most metals are good conductors of electricity, while paper, air and glass are good insulators.
没有导电尘埃与能破坏金属及绝缘的腐蚀性气体的场所；
No conductive dust and corrosive gas which may destroy metal and insulation;
在圆柱形绝缘体上沉积一层金属薄膜制成。
This is made by depositing a thin film of metal on a cylindrical insulating support.
在圆柱形绝缘体上沉积一层金属薄膜制成。
This is made by depositing a thin film of metal on a cylindrical insulating support.
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