使绝缘
3.These cells are essential for neurons to communicate with one another because they insulate the long axons between neurons, preventing the electrical signal carried by the axons from dissipating.
4.has fast speed. high efficiency and quality. and reached advanced world level.
6.The experimentation and study showed that fine synergism could be produced between hydroxyl P(Vc-Vac) and PU molecules, So the composite material not only is of good electricity insulativity, mechanical behavior, but also high viscosity and fast safe character, and so on.
7.In wires with very weak insulation (such as telecom and datacom wires having a foamed dielectric), the AC voltage ionizes the air inside the foam cells, reducing overall dielectric strength of the insulation.
8.By adding various additives, properties of new PU sole such as abrasion resistance, oil resistance, electric insulation, antistatic and acid and alkali resistance have been much improved.
9.To prevent short circuits, the wires are kept from touching one another by being covered with an insulator other by being covered with an insulator such as rubber.
10.In order to accelerate the aging process, all the samples were immersed in distilled water at 50℃. After long time of water immersion, it is shown that the hydrophobicity is lost gradually and tan δ and ε r are changed abruptly. It shows that insulation property is lost.
